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{{Infobox person
{{Infobox person
| name            = Yūji Kasai
| name            = Yūji Kasai
| jpn-name        = カサイユージ<br>葛西雄治
| jpn-name        = カサイユージ (葛西雄治)
| image          =  
| image          =  
| alt            =  
| alt            =  
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| death_cause    =  
| death_cause    =  
| occupation      = Manga artist
| occupation      = Manga artist
| years_active    = TBD-present
| years_active    = 2011-present
| casting        =  
| casting        =  
| employer        = [[Shueisha]]
| employer        = [[Shueisha]]
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| religion        =  
| religion        =  
}}
}}
'''Yūji Kasai''' is the author and illustrator of two spin-off ''Dragon Ball'' manga series: ''[[Super Dragon Ball Heroes: Avatars!!]]'' and ''[[Dragon Ball Super Divers: Let's Super Dive!!]]'', both originally serialized in the children's magazine ''[[Saikyō Jump]]'' produced by [[Shueisha]]. In addition to these works, Kasai has contributed a variety of promotional and informational pieces in various Shueisha publications.
'''Yūji Kasai''' — credited as both 葛西雄治 and later as カサイユージ — is the author and illustrator of two spin-off ''Dragon Ball'' manga series: ''[[Super Dragon Ball Heroes: Avatars!!]]'' and ''[[Dragon Ball Super Divers: Let's Super Dive!!]]'', both originally serialized in the children's magazine ''[[Saikyō Jump]]'' produced by [[Shueisha]].
 
In addition to these works, Kasai has contributed a variety of promotional and informational pieces in various Shueisha publications dating back to 2011 with early contest and one-shot submissions, which quickly led to regular, ongoing publications.


==Biography==
==Biography==
Little is known about Yūji Kasai, including whether or not said name is a pen name.{{efn|That said, with past contributions being credited as 葛西雄治, the later ''kana''-only name may simply be for creative reasons.}} With no known social media platforms (as opposed to peers such as [[Toyotarō]] and [[Yoshitaka Nagayama]]), the only verifiable public comments from Kasai come from author introductions in collected manga volumes, as well as comments in the back of ''[[Saikyō Jump]]'' issues alongside other author comments.
[[File:Yuji-kasai-signing-2016.png|thumb|200px|Yūji Kasai at a Jump Victory Carnival 2016 autograph signing<ref>{{Cite web|URL=https://x.com/V_Jump/status/761795155871412225|Website=Twitter|Title="@V_Jump"|Date=06 August 2016|AccessDate=24 September 2026}}</ref>]]
Little is known about Yūji Kasai{{efn|Regarding this being a pen name: with past contributions being credited as 葛西雄治, the later ''kana''-only name of カサイユージ may simply be for creative reasons.}}. With no obvious social media platforms (as opposed to peers such as [[Toyotarō]] and [[Yoshitaka Nagayama]]), the only verifiable public comments from Kasai come from author introductions in collected manga volumes, as well as comments in the back of ''[[Saikyō Jump]]'' issues alongside other author comments.


Kasai ''has'' participated in public autograph sessions, however, alongside other ''Dragon Ball'' manga authors like [[Toyotarō]].<ref>{{Cite web|URL=https://www.dbsdv.com/news/067.php|Website=ドラゴンボールスーパーダイバーズ公式サイト|Title="&#91;終了&#93;スーパーダイブツアー 2025"|AccessDate=22 September 2026}}</ref>
Kasai ''has'' participated in public autograph sessions, however, alongside other ''Dragon Ball'' manga authors like [[Toyotarō]].<ref>{{Cite web|URL=https://www.dbsdv.com/news/067.php|Website=ドラゴンボールスーパーダイバーズ公式サイト|Title="&#91;終了&#93;スーパーダイブツアー 2025"|AccessDate=22 September 2026}}</ref>


==Works==
==Works==
[[File:Yuji-kasai-occult-hunter-collected-volume-cover.png|150px|thumb|Collected edition of the ''Occult Hunter Rūto'' manga series]]
[[File:Uchida-president-vjump-manga-departs-panel-example.png|150px|thumb|"Victory Uchida" departs in the final chapter of the ''Victory Uchida's Path to Becoming President!'' manga series]]
[[File:Yuji-kasai-dbh-5th-anniversary-manga-sample.png|150px|thumb|First page of the ''Project DBH'' mini-manga featuring ''Dragon Ball Heroes'' producer [[Wataru Higuchi]]]]
[[File:Yuji-kasai-dbh-5th-anniversary-manga-sample.png|150px|thumb|First page of the ''Project DBH'' mini-manga featuring ''Dragon Ball Heroes'' producer [[Wataru Higuchi]]]]
[[File:Vjump-2020-01-yuji-kasai-supplement-manga-p1.png|150px|thumb|First page of the ''Super Dragon Ball Heroes'' informational mini-manga packed with the January 2020 issue of ''V-Jump'']]
[[File:Vjump-2020-01-yuji-kasai-supplement-manga-p1.png|150px|thumb|First page of the ''Super Dragon Ball Heroes'' informational mini-manga packed with the January 2020 issue of ''V-Jump'']]
[[File:Sdbh-gaiden-avatar-story-title-page.png|150px|thumb|Title page for the ''[[Super Dragon Ball Heroes Side-Story: Avatar Story!!]]'' one-shot]]
[[File:Sdbh-gaiden-avatar-story-title-page.png|150px|thumb|Title page for the ''[[Super Dragon Ball Heroes Side-Story: Avatar Story!!]]'' one-shot]]
[[File:dbsd-lsd-chp-01-title.png|150px|thumb|Title page for the ''[[Dragon Ball Super Divers: Let's Super Dive!!]]'' debut chapter]]
[[File:dbsd-lsd-chp-01-title.png|150px|thumb|Title page for the ''[[Dragon Ball Super Divers: Let's Super Dive!!]]'' debut chapter]]
===Santa Came to Our House!===
Kasai received an honorable mention at Shueisha's 74th [https://ja.wikipedia.org/wiki/%E8%B5%A4%E5%A1%9A%E8%B3%9E Akatsuka Award] for the submission ''Santa Came to Our House!'' (サンタが家にやってきた!) in early 2011.<ref>{{Cite web|URL=https://mediaarts-db.artmuseums.go.jp/id/M642516|Website=メディア芸術データベース|Title="ジャンプSQ. 2011.0 8"|AccessDate=24 September 2026}}</ref>
===Occult-san Go! Go!===
The 19-page comedy manga one-shot ''Occult-san Go! Go!'' (オカルトさんGO!GO!) ran in the special ''Jump NEXT! Summer 2011'' publication.<ref>{{Cite web|URL=https://order.mandarake.co.jp/order/detailPage/item?itemCode=1347363003|Website=Mandarake|Title="集英社 2011年(平成23年)の漫画雑誌 少年ジャンプNEXT! 2011SUMMER 11夏"|AccessDate=24 September 2026}}</ref>
===Occult Hunter Rūto===
The 11-chapter manga series ''Occult Hunter Rūto'' (オカルトハンター ルート) began with the first main reboot of [[Shueisha]]'s ''[[Saikyō Jump]]'' magazine, running from the January 2012 issue (released in December 2011) to the October 2012 issue, receiving a single-volume collected edition later that same year (collecting only the first seven chapters and an original extra chapter), and a digital release early the following year.<ref>{{Cite web|URL=https://www.shueisha.co.jp/books/items/contents.html?jdcn=08870585870585315501|Website=集英社　―　SHUEISHA　―|Title="オカルトハンター ルート 1／葛西雄治"|AccessDate=24 September 2026}}</ref>
===Victory Uchida's Path to Becoming President!===
===Victory Uchida's Path to Becoming President!===
ビクトリー・ウチダの社長への道!
The slapstick, informational/promotional manga series ''Victory Uchida's Path to Becoming President!'' (ビクトリー・ウチダの社長への道!) began in the December 2012 issue of [[Shueisha]]'s ''[[V-Jump]]'' magazine (released in October 2012)<ref>"ビクトリー・ウチダの社長への道!". ''V-Jump'', December 2012. Japan: Shueisha, 20 October 2012. (pp. 95-99)</ref>, and ran for 79 chapters to the July 2019 issue<ref>"ビクトリー・ウチダの社長への道!". ''V-Jump'', July 2019. Japan: Shueisha, 21 May 2019. (pp. 271-275)</ref>. Kasai was credited with his full name of 葛西雄治 for the entire run, with "Victory Uchida" receiving the 編集 ("editing") credit alongside him. As teased during the final chapter, beginning with the August 2019 issue of ''V-Jump'', the series transitioned into a follow-up called ''Victory Asada's Path to First-Class!!!'' (ビクトリー・アサダの超一流への道!!!) featuring editor "Victory Asada" in the place of Uchida.
2014(ish?) - (???)
 
===Victory Asada's Path to First-Class!!!===
The slapstick, informational/promotional manga series ''Victory Asada's Path to First-Class!!!'' (ビクトリー・アサダの超一流への道!!!) picked up in the August 2019 issue of [[Shueisha]]'s ''[[V-Jump]]'' magazine (released in June 2019)<ref>"ビクトリー・アサダの超一流への道!!!". ''V-Jump'', August 2019. Japan: Shueisha, 21 June 2019. (pp. 285-291)</ref>, and ran for 55 chapters to the March 2024 issue<ref>"ビクトリー・アサダの超一流への道!!!". ''V-Jump'', March 2024. Japan: Shueisha, 19 January 2024. (pp. 367-373)</ref>. Kasai was credited at this point with the ''kana''-only name of カサイユージ for the full run, with "Victory Asada" now receiving the 編集 ("editing") credit alongside him. As teased during the final chapter, beginning with the April 2024 issue of ''V-Jump'', the series transitioned into a follow-up called ''N•E•O Shindo's "Pro"logue'' (N•E•Oシンドーの"プロ"ローーグ!!) the following issue.


===N•E•O Shindo's "Pro"logue===
===N•E•O Shindo's "Pro"logue===


Began in the (???) issue of ''V-Jump''; manga by Kasai, editing by N.E.O. Shindo.
The slapstick, informational/promotional manga series ''N•E•O Shindo's "Pro"logue'' (N•E•Oシンドーの"プロ"ローーグ!!) began in the April 2024 issue of [[Shueisha]]'s ''[[V-Jump]]'' magazine (released in February 2024)<ref>"N•E•Oシンドーの"プロ"ローーグ!!". ''V-Jump'', April 2024. Japan: Shueisha, 21 February 2024. (pp. 381-387)</ref>, with the manga by Kasai, and "N.E.O. Shindo" now receiving the 編集 ("editing") credit alongside him. The manga continues to run today, eclipsing 30 chapters in 2026.


N•E•Oシンドーの"プロ"ローーグ!!
===Aim for the Top! The Strongest Superstar Psy Jack Omega!! The Manga===


===Promotional and Informational Pieces===
Another slapstick manga series based on the real lives of ''Jump'' editors entitled ''Aim for the Top! The Strongest Superstar Psy Jack Omega!! The Manga'' (めざせ! 最強スーパースターサイ・ジャックΩ!! ザ・マンガ) began in the January 2012 issue of [[Shueisha]]'s ''[[Saikyō Jump]]'' magazine (released in December 2011)<ref>{{citation needed}}</ref>. In its first two chapters, the series was actually called ''The Strongest Challenger Psy Jack!! Manga Edition'' (最強チャレンジャーサイ・ジャック!! マンガ版)<ref>"最強チャレンジャーサイ・ジャック!! マンガ版". ''Saikyō Jump'', February 2012. Japan: Shueisha, 04 January 2012. (pp. 545-549)</ref> before switching to its more permanent title with its third chapter in the March 2012 issue<ref>"めざせ! 最強スーパースターサイ・ジャックΩ!! ザ・マンガ". ''Saikyō Jump'', March 2012. Japan: Shueisha, 03 February 2012. (pp. 549-550)</ref>. The series ran until the November 2015 issue, with chapters neither being numbered along the way nor collected into volumes.
Prior to their formal ''Dragon Ball'' manga serializations, Yūji Kasai appeared in the pages of various [[Shueisha]] publications for a variety of promotional and informational ''Dragon Ball''-related pieces. These include, but are not limited to:


* A mini-manga series in two ''Dragon Ball Heroes'' anniversary guides called "Project DBH: The Story of Producer Wataru Higuchi" (プロジェクトDBH ~樋口亘P物語~) featuring ''Heroes'' producer [[Wataru Higuchi]] explaining the history of the game, where Kasai is credited in full ''kanji'' as 葛西雄治. These are included in the ''[[Bandai Official 5th Anniversary Fanbook: Dragon Ball Heroes 5th Anniversary Mission]]'' in 2015<ref>{{Cite guidebook|Title="プロジェクトDBH ~樋口亘P物語~"|Book=heroes5th|Page=pp. 24-30}}</ref> and in the ''[[Super Dragon Ball Heroes 8th Anniversary Super Guide]]'' in 2018<ref>{{Cite guidebook|Title="プロジェクトDBH ~樋口亘P物語~"|Book=heroes8th|Page=pp. 12-16}}</ref>.
===Burn!! Psy Jack Dragon!!===
* A mini-manga in the ''[[Super Dragon Ball Heroes: Ultimate Tour 2019 Super Guide]]'' in 2019 called "A Must-Read Manga For Anyone Who Wants to Know About Super Dragon Ball Heroes Tournaments" (SDBHの大会について 知りたい人に読んで欲しいマンガ超)<ref>{{Cite guidebook|Title="SDBHの大会について 知りたい人に読んで欲しいマンガ超"|Book=heroestour2019|Page=pp. 40-44}}</ref>.
 
* A mini-manga series in two ''Dragon Ball Heroes'' anniversary guides called "''Super Dragon Ball Heroes'' Creator Profiles" (『SDBH』制作者列伝) featuring game staff. These are included in the ''[[Super Dragon Ball Heroes 9th Anniversary Super Guide]]'' in 2019<ref>{{Cite game guide|Title="『SDBH』制作者列伝"|Book=heroes9th|Page=pp. 24-28}}</ref> and in the ''[[Super Dragon Ball Heroes 10th Anniversary Super Guide]]'' in 2020<ref>{{Cite game guide|Title="『SDBH』制作者列伝"|Book=heroes10th|Page=pp. 30-34}}</ref>.
A follow-up ''Psy Jack'' series entitled ''Burn!! Psy Jack Dragon!!'' (燃えよ!! サイ・ジャックD!!) picked up in the January 2016 issue of [[Shueisha]]'s ''[[Saikyō Jump]]'' magazine (released in December 2015)<ref>"燃えよ!! サイ・ジャックD!!". ''Saikyō Jump'', January 2016. Japan: Shueisha, 04 December 2015. (pp. 677-680)</ref>. The series ran until the May 2021 issue, with chapters neither being numbered along the way nor collected into volumes.
* A mini-manga in the ''[[Super Dragon Ball Heroes: Big Bang Mission Super Guide]]'' in 2020 called "''Super Dragon Ball Heroes'' Creators' Chronicles: The Story Behind Big Bang Mission: It's the 10th Anniversary, Bang Bang Bang" (『SDBH』制作者烈伝 ビッグバンミッション創造記 ~ 10周年だよバンバンバン~)<ref>{{Cite guidebook|Title="『SDBH』制作者烈伝 ビッグバンミッション創造記 ~ 10周年だよバンバンバン~"|Book=heroesbbmg|Page=pp. 10-14}}</ref>.
* A five-page mini-manga in conjunction with the January 2020 issue of ''[[V-Jump]]'' explaining how to use that issue's ''Super Dragon Ball Heroes'' insert card and the "All-Entrants Service Card"<ref>{{Cite web|URL=https://x.com/V_Jump/status/1197458645954334720|Website=Twitter|Title="@V_Jump"|Date=21 November 2019|AccessDate=23 September 2026}}</ref><ref>{{Cite web|URL=https://web.archive.org/web/20201207042714/https://vjump.shueisha.co.jp/sdbh_furoku201911/|Website=VジャンプWEB|Title="Ｖジャンプ1月特大号付録カード「孫悟空」の使い方がよくわかる!!"|Date=21 November 2019|AccessDate=23 September 2026}}</ref>
* The 2020 No. 52 issue of ''[[Weekly Shōnen Jump]]'' came packed with a "[[Vegetto]]" card ([[BMWJ-01]]) for ''Super Dragon Ball Heroes'', along with a special one-shot comic by Kasai about how to use the card<ref>{{Cite web|URL=https://x.com/dbh_10th/status/1333218918144434176|Website=Twitter|Title="@dbh_10th"|Date=29 November 2020|AccessDate=23 September 2026}}</ref><ref>{{Cite web|URL=https://www.carddass.com/dbh/sdbh_bm/products/wj_52.php|Website=スーパードラゴンボールヒーローズ 公式サイト|Title="WJ52号に「ベジット」のふろくカードがついてくる！ - グッズ"|AccessDate=23 September 2026}}</ref>
* February 2023 item (https://x.com/atsuko_uchida_/status/1627938731666845697)


===Super Dragon Ball Heroes: Avatars!!===
===Super Dragon Ball Heroes: Avatars!!===
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Following the completion of ''[[Super Dragon Ball Heroes: Avatars!!]]'', Yūji Kasai moved on to authoring and illustrating ''[[Dragon Ball Super Divers: Let's Super Dive!!]]'' beginning in the December 2024 issue of ''[[Saikyō Jump]]''<ref>{{Cite web|URL=https://x.com/SAIKYO_JUMP/status/1849360177926930457|Website=Twitter|Title="@SAIKYO_JUMP"|Date=24 October 2024|AccessDate=22 September 2026}}</ref>, a series in support of the ''[[Dragon Ball Super Divers]]'' card-based arcade game. The series is currently ongoing and receiving collected volumes.<ref name="superdiversshueishaseries">{{Cite web|URL=https://www.shueisha.co.jp/books/search/search.html?seriesid=137010|Website=集英社の本 公式|Title="検索結果"|AccessDate=22 September 2026}}</ref>
Following the completion of ''[[Super Dragon Ball Heroes: Avatars!!]]'', Yūji Kasai moved on to authoring and illustrating ''[[Dragon Ball Super Divers: Let's Super Dive!!]]'' beginning in the December 2024 issue of ''[[Saikyō Jump]]''<ref>{{Cite web|URL=https://x.com/SAIKYO_JUMP/status/1849360177926930457|Website=Twitter|Title="@SAIKYO_JUMP"|Date=24 October 2024|AccessDate=22 September 2026}}</ref>, a series in support of the ''[[Dragon Ball Super Divers]]'' card-based arcade game. The series is currently ongoing and receiving collected volumes.<ref name="superdiversshueishaseries">{{Cite web|URL=https://www.shueisha.co.jp/books/search/search.html?seriesid=137010|Website=集英社の本 公式|Title="検索結果"|AccessDate=22 September 2026}}</ref>
===Other Promotional and Informational Manga===
Prior to the formal ''Dragon Ball'' manga serializations (and then also concurrent with them), Yūji Kasai appeared in the pages of various [[Shueisha]] publications for a variety of promotional and informational ''Dragon Ball''-related pieces. These include, but are not limited to:
* A mini-manga series in two ''Dragon Ball Heroes'' anniversary guides called "Project DBH: The Story of Producer Wataru Higuchi" (プロジェクトDBH ~樋口亘P物語~) featuring ''Heroes'' producer [[Wataru Higuchi]] explaining the history of the game, where Kasai is credited in full ''kanji'' as 葛西雄治. These are included in the ''[[Bandai Official 5th Anniversary Fanbook: Dragon Ball Heroes 5th Anniversary Mission]]'' in 2015<ref>{{Cite guidebook|Title="プロジェクトDBH ~樋口亘P物語~"|Book=heroes5th|Page=pp. 24-30}}</ref> and in the ''[[Super Dragon Ball Heroes 8th Anniversary Super Guide]]'' in 2018<ref>{{Cite guidebook|Title="プロジェクトDBH ~樋口亘P物語~"|Book=heroes8th|Page=pp. 12-16}}</ref>.
* A mini-manga in the ''[[Super Dragon Ball Heroes: Ultimate Tour 2019 Super Guide]]'' in 2019 called "A Must-Read Manga For Anyone Who Wants to Know About Super Dragon Ball Heroes Tournaments" (SDBHの大会について 知りたい人に読んで欲しいマンガ超)<ref>{{Cite guidebook|Title="SDBHの大会について 知りたい人に読んで欲しいマンガ超"|Book=heroestour2019|Page=pp. 40-44}}</ref>.
* A mini-manga series in two ''Dragon Ball Heroes'' anniversary guides called "''Super Dragon Ball Heroes'' Creator Profiles" (『SDBH』制作者列伝) featuring game staff. These are included in the ''[[Super Dragon Ball Heroes 9th Anniversary Super Guide]]'' in 2019<ref>{{Cite game guide|Title="『SDBH』制作者列伝"|Book=heroes9th|Page=pp. 24-28}}</ref> and in the ''[[Super Dragon Ball Heroes 10th Anniversary Super Guide]]'' in 2020<ref>{{Cite game guide|Title="『SDBH』制作者列伝"|Book=heroes10th|Page=pp. 30-34}}</ref>.
* A mini-manga in the ''[[Super Dragon Ball Heroes: Big Bang Mission Super Guide]]'' in 2020 called "''Super Dragon Ball Heroes'' Creators' Chronicles: The Story Behind Big Bang Mission: It's the 10th Anniversary, Bang Bang Bang" (『SDBH』制作者烈伝 ビッグバンミッション創造記 ~ 10周年だよバンバンバン~)<ref>{{Cite guidebook|Title="『SDBH』制作者烈伝 ビッグバンミッション創造記 ~ 10周年だよバンバンバン~"|Book=heroesbbmg|Page=pp. 10-14}}</ref>.
* "Extra Edition" (番外編) chapters of the ''[[Super Dragon Ball Heroes: Avatars!!]]'' manga series in two ''Dragon Ball Heroes'' anniversary guides. A four-page chapter is included in the ''[[Super Dragon Ball Heroes 11th Anniversary Super Guide]]'' in 2021<ref>{{Cite game guide|Title="SDBHアバターズ！！番外編"|Book=heroes11th|Page=pp. 10-13}}</ref>, and a two-page chapter is included in the ''[[Super Dragon Ball Heroes 12th Anniversary Super Guide]]'' in 2022<ref>{{Cite game guide|Title="SDBHアバターズ！！番外編"|Book=heroes12th|Page=pp. 12-13}}</ref>
* In conjunction with her appearance in the contest section of the April 2019 issue of ''V-Jump''<ref>''V-Jump'', April 2019. Japan: Shueisha, 21 February 2019. (pp. 304-305)</ref>, Kasai penned a four-page mini manga featuring Tomoko Kanazawa of [https://helloproject.com/juicejuice/ Juice=Juice] from [https://helloproject.com/ Hello! Project] as a special feature on the ''V-Jump'' official website<ref>{{Cite web|URL=https://x.com/V_Jump/status/1098431236362579969|Website=Twitter|Title="@V_Jump"|Date=20 February 2019|AccessDate=24 September 2026}}</ref><ref>{{Cite web|URL=https://web.archive.org/web/20190308182102/https://vjump.shueisha.co.jp/kensyosp_201904/|Website=VジャンプWEB|Title="Juice＝Juice金澤朋子さんにインタビュー！"|Date=20 February 2019|AccessDate=24 September 2026}}</ref>
* A ten-page bonus manga chapter featuring "Victory Uchida" focused on strategy for and promoting the release of ''[[Super Dragon Ball Heroes: World Mission]]'' for the Nintendo Switch in the June 2019 issue of ''V-Jump''<ref>{{Cite web|URL=https://x.com/s_manga_net/status/1119511212855681024|Website=Twitter|Title="@V_Jump"|Date=20 April 2019|AccessDate=24 September 2026}}</ref><ref>"ビクトリー・ウチダのSDBHWM最強カードエディットへの道!!". ''V-Jump'', April 2019. Japan: Shueisha, 20 April 2019. (pp. 136-145)</ref>
* A five-page mini-manga in conjunction with the January 2020 issue of ''[[V-Jump]]'' explaining how to use that issue's ''Super Dragon Ball Heroes'' insert card and the "All-Entrants Service Card"<ref>{{Cite web|URL=https://x.com/V_Jump/status/1197458645954334720|Website=Twitter|Title="@V_Jump"|Date=21 November 2019|AccessDate=23 September 2026}}</ref><ref>{{Cite web|URL=https://web.archive.org/web/20201207042714/https://vjump.shueisha.co.jp/sdbh_furoku201911/|Website=VジャンプWEB|Title="Ｖジャンプ1月特大号付録カード「孫悟空」の使い方がよくわかる!!"|Date=21 November 2019|AccessDate=23 September 2026}}</ref>
* The 2020 No. 52 issue of ''[[Weekly Shōnen Jump]]'' came packed with a "[[Vegetto]]" card ([[BMWJ-01]]) for ''Super Dragon Ball Heroes'', along with a special one-shot comic by Kasai about how to use the card<ref>{{Cite web|URL=https://x.com/dbh_10th/status/1333218918144434176|Website=Twitter|Title="@dbh_10th"|Date=29 November 2020|AccessDate=23 September 2026}}</ref><ref>{{Cite web|URL=https://www.carddass.com/dbh/sdbh_bm/products/wj_52.php|Website=スーパードラゴンボールヒーローズ 公式サイト|Title="WJ52号に「ベジット」のふろくカードがついてくる！ - グッズ"|AccessDate=23 September 2026}}</ref>
* February 2023 item (https://x.com/atsuko_uchida_/status/1627938731666845697)


==Promotional Items==
==Promotional Items==
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==Notable Comments==
==Notable Comments==
Alongside [[Toyotarō]] and [[Yoshitaka Nagayama]], Yūji Kasai shared a congratulatory comment about ''Dragon Ball Heroes'' in the game series' 10th anniversary guide book<ref>{{Cite game guide|Title="限界突破 10周年! 英雄の神々からの超お祝いメッセージ!!!"|Book=heroes10th|Page=p. 10}}</ref>:
[[File:Yuji-kasai-jump-next-summer-2011-author-comment.png|200px|thumb|Author comment for ''Occult-san Go! Go!'' in ''Jump NEXT! Summer 2011'']]
Alongside his one-shot debut with ''Occult-san Go! Go!'' in the special ''Jump NEXT! Summer 2011'' publication, Kasai provided the following author note:
 
{{quotation|ファンレターってステキですよね。だから送って下さい。サヨナラ〜。<hr><br>Fan letters are wonderful, aren't they? So please send me one. Goodbye~.}}
 
Alongside [[Toyotarō]] and [[Yoshitaka Nagayama]], Yūji Kasai shared a congratulatory comment and drawing about ''Dragon Ball Heroes'' in the game series' 10th anniversary guide book<ref>{{Cite game guide|Title="限界突破 10周年! 英雄の神々からの超お祝いメッセージ!!!"|Book=heroes10th|Page=p. 10}}</ref>:


{{quotation|「DBH」シリーズ10周年おめでとうございます! 樋口さんや制作の方々のインタビュー漫画を描かせていただき、ヒーローズの進化と開発の努力や苦労を知って「やっぱり凄いモノを作る人たちは凄い･･･!」と感じました。これから世界でも発展して盛り上がりブーストMAXになる事を願っています!<hr><br>ENGLISH TRANSLATION TBD}}
{{quotation|「DBH」シリーズ10周年おめでとうございます! 樋口さんや制作の方々のインタビュー漫画を描かせていただき、ヒーローズの進化と開発の努力や苦労を知って「やっぱり凄いモノを作る人たちは凄い･･･!」と感じました。これから世界でも発展して盛り上がりブーストMAXになる事を願っています!<hr><br>ENGLISH TRANSLATION TBD}}


Similarly, Yūji Kasai contributed a short congratulatory message for the 13th anniversary of the ''Dragon Ball Heroes'' arcade game series in 2023:<ref>{{Cite web|URL=https://x.com/PONURU_SDBH/status/1716028699731173801|Website=Twitter|Title="@PONURU_SDBH"|Date=22 October 2023|AccessDate=22 September 2026}}</ref>
Similarly, Yūji Kasai contributed a short congratulatory comment and drawing for the 13th anniversary of the ''Dragon Ball Heroes'' arcade game series in 2023:<ref>{{Cite web|URL=https://x.com/PONURU_SDBH/status/1716028699731173801|Website=Twitter|Title="@PONURU_SDBH"|Date=22 October 2023|AccessDate=22 September 2026}}</ref>


{{quotation|DBH13周年おめでとうございます! これからもアっと驚く進化で 僕達をわくわくさせて下さい! そして僕の推しキャラである 黒衣の女戦士は今後も登場するのか!? 色々と注目しながら新しいミッション 楽しみにしています!<hr><br>ENGLISH TRANSLATION TBD}}
{{quotation|DBH13周年おめでとうございます! これからもアっと驚く進化で 僕達をわくわくさせて下さい! そして僕の推しキャラである 黒衣の女戦士は今後も登場するのか!? 色々と注目しながら新しいミッション 楽しみにしています!<hr><br>ENGLISH TRANSLATION TBD}}
Finally, Kasai contributed a short congratulatory comment and drawing for the wrap-up of the ''Dragon Ball Heroes'' game series in its ''Heroes Memories'' guide book<ref>{{Cite game guide|Title="超英雄からのメッセージ No. 7"|Book=heroesmemories|Page=p. 11}}</ref>:
{{quotation|『SDBH』にはたくさんの思い出があります! 子どもの 頃、「DB」のカードダスを必死に集めていたので、大人になった今も『SDBH』の新しいカードが出るたびにわくわくしていました。インタビュー漫画を描かせていただいたのがキッカケで『DBH』をプレイし、長い間進化を見てきましたが毎回死の淵 から生還したサイヤ人の様なパワーアップで、制作スタッフさんの発想力や努力のスゴさにおったまげでした!! 最強ジャンプで 『SDBHアバターズ!!』も連載させていただき、僕の人生に『SDBH』は欠かせないモノです。ヒーローズ、本当に今までありがとう!!<hr><br>ENGLISH TRANSLATION TBD}}


==Erroneous Citations==
==Erroneous Citations==

Latest revision as of 10:40, 25 September 2026

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Yūji Kasai
カサイユージ (葛西雄治)
Occupation Manga artist
Years active 2011-present
Employer Shueisha
v · d · e

Yūji Kasai — credited as both 葛西雄治 and later as カサイユージ — is the author and illustrator of two spin-off Dragon Ball manga series: Super Dragon Ball Heroes: Avatars!! and Dragon Ball Super Divers: Let's Super Dive!!, both originally serialized in the children's magazine Saikyō Jump produced by Shueisha.

In addition to these works, Kasai has contributed a variety of promotional and informational pieces in various Shueisha publications dating back to 2011 with early contest and one-shot submissions, which quickly led to regular, ongoing publications.

Biography

Yūji Kasai at a Jump Victory Carnival 2016 autograph signing[1]

Little is known about Yūji Kasai[a]. With no obvious social media platforms (as opposed to peers such as Toyotarō and Yoshitaka Nagayama), the only verifiable public comments from Kasai come from author introductions in collected manga volumes, as well as comments in the back of Saikyō Jump issues alongside other author comments.

Kasai has participated in public autograph sessions, however, alongside other Dragon Ball manga authors like Toyotarō.[2]

Works

Collected edition of the Occult Hunter Rūto manga series
"Victory Uchida" departs in the final chapter of the Victory Uchida's Path to Becoming President! manga series
First page of the Project DBH mini-manga featuring Dragon Ball Heroes producer Wataru Higuchi
First page of the Super Dragon Ball Heroes informational mini-manga packed with the January 2020 issue of V-Jump
Title page for the Super Dragon Ball Heroes Side-Story: Avatar Story!! one-shot
Title page for the Dragon Ball Super Divers: Let's Super Dive!! debut chapter

Santa Came to Our House!

Kasai received an honorable mention at Shueisha's 74th Akatsuka Award for the submission Santa Came to Our House! (サンタが家にやってきた!) in early 2011.[3]

Occult-san Go! Go!

The 19-page comedy manga one-shot Occult-san Go! Go! (オカルトさんGO!GO!) ran in the special Jump NEXT! Summer 2011 publication.[4]

Occult Hunter Rūto

The 11-chapter manga series Occult Hunter Rūto (オカルトハンター ルート) began with the first main reboot of Shueisha's Saikyō Jump magazine, running from the January 2012 issue (released in December 2011) to the October 2012 issue, receiving a single-volume collected edition later that same year (collecting only the first seven chapters and an original extra chapter), and a digital release early the following year.[5]

Victory Uchida's Path to Becoming President!

The slapstick, informational/promotional manga series Victory Uchida's Path to Becoming President! (ビクトリー・ウチダの社長への道!) began in the December 2012 issue of Shueisha's V-Jump magazine (released in October 2012)[6], and ran for 79 chapters to the July 2019 issue[7]. Kasai was credited with his full name of 葛西雄治 for the entire run, with "Victory Uchida" receiving the 編集 ("editing") credit alongside him. As teased during the final chapter, beginning with the August 2019 issue of V-Jump, the series transitioned into a follow-up called Victory Asada's Path to First-Class!!! (ビクトリー・アサダの超一流への道!!!) featuring editor "Victory Asada" in the place of Uchida.

Victory Asada's Path to First-Class!!!

The slapstick, informational/promotional manga series Victory Asada's Path to First-Class!!! (ビクトリー・アサダの超一流への道!!!) picked up in the August 2019 issue of Shueisha's V-Jump magazine (released in June 2019)[8], and ran for 55 chapters to the March 2024 issue[9]. Kasai was credited at this point with the kana-only name of カサイユージ for the full run, with "Victory Asada" now receiving the 編集 ("editing") credit alongside him. As teased during the final chapter, beginning with the April 2024 issue of V-Jump, the series transitioned into a follow-up called N•E•O Shindo's "Pro"logue (N•E•Oシンドーの"プロ"ローーグ!!) the following issue.

N•E•O Shindo's "Pro"logue

The slapstick, informational/promotional manga series N•E•O Shindo's "Pro"logue (N•E•Oシンドーの"プロ"ローーグ!!) began in the April 2024 issue of Shueisha's V-Jump magazine (released in February 2024)[10], with the manga by Kasai, and "N.E.O. Shindo" now receiving the 編集 ("editing") credit alongside him. The manga continues to run today, eclipsing 30 chapters in 2026.

Aim for the Top! The Strongest Superstar Psy Jack Omega!! The Manga

Another slapstick manga series based on the real lives of Jump editors entitled Aim for the Top! The Strongest Superstar Psy Jack Omega!! The Manga (めざせ! 最強スーパースターサイ・ジャックΩ!! ザ・マンガ) began in the January 2012 issue of Shueisha's Saikyō Jump magazine (released in December 2011)[11]. In its first two chapters, the series was actually called The Strongest Challenger Psy Jack!! Manga Edition (最強チャレンジャーサイ・ジャック!! マンガ版)[12] before switching to its more permanent title with its third chapter in the March 2012 issue[13]. The series ran until the November 2015 issue, with chapters neither being numbered along the way nor collected into volumes.

Burn!! Psy Jack Dragon!!

A follow-up Psy Jack series entitled Burn!! Psy Jack Dragon!! (燃えよ!! サイ・ジャックD!!) picked up in the January 2016 issue of Shueisha's Saikyō Jump magazine (released in December 2015)[14]. The series ran until the May 2021 issue, with chapters neither being numbered along the way nor collected into volumes.

Super Dragon Ball Heroes: Avatars!!

Yūji Kasai's regular Dragon Ball work began with the one-shot Super Dragon Ball Heroes Side-Story: Avatar Story!! in the January 2021 issue of Saikyō Jump, which was later adapted and expanded into the full Super Dragon Ball Heroes: Avatars!! serialization beginning in the magazine's September 2021 issue, and running to completion in the October 2024 issue of the magazine. Alongside several series by Yoshitaka Nagayama in the same magazine, Avatars!! ran in support of the Super Dragon Ball Heroes card-based arcade game.

The series spanned 37 chapters and was collected into five volumes[15], which were released over the course of 2022-2024 by Shueisha.

Dragon Ball Super Divers: Let's Super Dive!!

Following the completion of Super Dragon Ball Heroes: Avatars!!, Yūji Kasai moved on to authoring and illustrating Dragon Ball Super Divers: Let's Super Dive!! beginning in the December 2024 issue of Saikyō Jump[16], a series in support of the Dragon Ball Super Divers card-based arcade game. The series is currently ongoing and receiving collected volumes.[17]

Other Promotional and Informational Manga

Prior to the formal Dragon Ball manga serializations (and then also concurrent with them), Yūji Kasai appeared in the pages of various Shueisha publications for a variety of promotional and informational Dragon Ball-related pieces. These include, but are not limited to:

Promotional Items

Yūji Kasai Jump Victory Carnival 2026 autographed drawing

Kasai contributed an autographed drawing available to select winners of a lottery at Jump Victory Carnival 2026 featuring Dragon Ball Super Divers: Let's Super Dive!!, which says "Dragon Ball is the best!!" (ドラゴンボール最高!!).[35]

Notable Comments

Author comment for Occult-san Go! Go! in Jump NEXT! Summer 2011

Alongside his one-shot debut with Occult-san Go! Go! in the special Jump NEXT! Summer 2011 publication, Kasai provided the following author note:

ファンレターってステキですよね。だから送って下さい。サヨナラ〜。


Fan letters are wonderful, aren't they? So please send me one. Goodbye~.


Alongside Toyotarō and Yoshitaka Nagayama, Yūji Kasai shared a congratulatory comment and drawing about Dragon Ball Heroes in the game series' 10th anniversary guide book[36]:

「DBH」シリーズ10周年おめでとうございます! 樋口さんや制作の方々のインタビュー漫画を描かせていただき、ヒーローズの進化と開発の努力や苦労を知って「やっぱり凄いモノを作る人たちは凄い･･･!」と感じました。これから世界でも発展して盛り上がりブーストMAXになる事を願っています!


ENGLISH TRANSLATION TBD


Similarly, Yūji Kasai contributed a short congratulatory comment and drawing for the 13th anniversary of the Dragon Ball Heroes arcade game series in 2023:[37]

DBH13周年おめでとうございます! これからもアっと驚く進化で 僕達をわくわくさせて下さい! そして僕の推しキャラである 黒衣の女戦士は今後も登場するのか!? 色々と注目しながら新しいミッション 楽しみにしています!


ENGLISH TRANSLATION TBD


Finally, Kasai contributed a short congratulatory comment and drawing for the wrap-up of the Dragon Ball Heroes game series in its Heroes Memories guide book[38]:

『SDBH』にはたくさんの思い出があります! 子どもの 頃、「DB」のカードダスを必死に集めていたので、大人になった今も『SDBH』の新しいカードが出るたびにわくわくしていました。インタビュー漫画を描かせていただいたのがキッカケで『DBH』をプレイし、長い間進化を見てきましたが毎回死の淵 から生還したサイヤ人の様なパワーアップで、制作スタッフさんの発想力や努力のスゴさにおったまげでした!! 最強ジャンプで 『SDBHアバターズ!!』も連載させていただき、僕の人生に『SDBH』は欠かせないモノです。ヒーローズ、本当に今までありがとう!!


ENGLISH TRANSLATION TBD


Erroneous Citations

An animator named Yūji Kasai but spelled out in kanji as 笠井雄司 is listed in various places (see: Anime News Network's encyclopedia) as being this same Dragon Ball manga author. This seems unlikely due to the wildly different drawing styles, genres, and completely different name spellings — the Shueisha employee has been credited before as 葛西雄治.

External Links

TBD

Notes

  1. ↑ Regarding this being a pen name: with past contributions being credited as 葛西雄治, the later kana-only name of カサイユージ may simply be for creative reasons.

References

  1. ↑ "@V_Jump" (06 August 2016). Twitter. Retrieved: 24 September 2026.
  2. ↑ "[終了]スーパーダイブツアー 2025". ドラゴンボールスーパーダイバーズ公式サイト. Retrieved: 22 September 2026.
  3. ↑ "ジャンプSQ. 2011.0 8". メディア芸術データベース. Retrieved: 24 September 2026.
  4. ↑ "集英社 2011年(平成23年)の漫画雑誌 少年ジャンプNEXT! 2011SUMMER 11夏". Mandarake. Retrieved: 24 September 2026.
  5. ↑ "オカルトハンター ルート 1／葛西雄治". 集英社　―　SHUEISHA　―. Retrieved: 24 September 2026.
  6. ↑ "ビクトリー・ウチダの社長への道!". V-Jump, December 2012. Japan: Shueisha, 20 October 2012. (pp. 95-99)
  7. ↑ "ビクトリー・ウチダの社長への道!". V-Jump, July 2019. Japan: Shueisha, 21 May 2019. (pp. 271-275)
  8. ↑ "ビクトリー・アサダの超一流への道!!!". V-Jump, August 2019. Japan: Shueisha, 21 June 2019. (pp. 285-291)
  9. ↑ "ビクトリー・アサダの超一流への道!!!". V-Jump, March 2024. Japan: Shueisha, 19 January 2024. (pp. 367-373)
  10. ↑ "N•E•Oシンドーの"プロ"ローーグ!!". V-Jump, April 2024. Japan: Shueisha, 21 February 2024. (pp. 381-387)
  11. ↑ [citation needed]
  12. ↑ "最強チャレンジャーサイ・ジャック!! マンガ版". Saikyō Jump, February 2012. Japan: Shueisha, 04 January 2012. (pp. 545-549)
  13. ↑ "めざせ! 最強スーパースターサイ・ジャックΩ!! ザ・マンガ". Saikyō Jump, March 2012. Japan: Shueisha, 03 February 2012. (pp. 549-550)
  14. ↑ "燃えよ!! サイ・ジャックD!!". Saikyō Jump, January 2016. Japan: Shueisha, 04 December 2015. (pp. 677-680)
  15. ↑ "検索結果". 集英社の本 公式. Retrieved: 22 September 2026.
  16. ↑ "@SAIKYO_JUMP" (24 October 2024). Twitter. Retrieved: 22 September 2026.
  17. ↑ "検索結果". 集英社の本 公式. Retrieved: 22 September 2026.
  18. ↑ "プロジェクトDBH ~樋口亘P物語~". Bandai Official 5th Anniversary Fanbook: Dragon Ball Heroes 5th Anniversary Mission. Japan: Shueisha, 19 November 2015. ISBN 4910113240162. (pp. 24-30)
  19. ↑ "プロジェクトDBH ~樋口亘P物語~". Super Dragon Ball Heroes 8th Anniversary Super Guide. Japan: Shueisha, 08 November 2018. ISBN 978-4-05-779769-5. (pp. 12-16)
  20. ↑ "SDBHの大会について 知りたい人に読んで欲しいマンガ超". . (pp. 40-44)
  21. ↑ "『SDBH』制作者列伝". Super Dragon Ball Heroes 9th Anniversary Super Guide. Japan: Shueisha, 07 November 2019. ISBN 978-4-08-779781-7. (pp. 24-28)
  22. ↑ "『SDBH』制作者列伝". Super Dragon Ball Heroes 10th Anniversary Super Guide. Japan: Shueisha, 26 November 2020. ISBN 978-4-08-779788-6. (pp. 30-34)
  23. ↑ "『SDBH』制作者烈伝 ビッグバンミッション創造記 ~ 10周年だよバンバンバン~". . (pp. 10-14)
  24. ↑ "SDBHアバターズ！！番外編". Super Dragon Ball Heroes 11th Anniversary Super Guide. Japan: Shueisha, 11 November 2021. ISBN 978-4-08-779797-8. (pp. 10-13)
  25. ↑ "SDBHアバターズ！！番外編". Super Dragon Ball Heroes 12th Anniversary Super Guide. Japan: Shueisha, 10 November 2022. ISBN 978-4-08-779803-6. (pp. 12-13)
  26. ↑ V-Jump, April 2019. Japan: Shueisha, 21 February 2019. (pp. 304-305)
  27. ↑ "@V_Jump" (20 February 2019). Twitter. Retrieved: 24 September 2026.
  28. ↑ "Juice＝Juice金澤朋子さんにインタビュー！" (20 February 2019). VジャンプWEB. Retrieved: 24 September 2026.
  29. ↑ "@V_Jump" (20 April 2019). Twitter. Retrieved: 24 September 2026.
  30. ↑ "ビクトリー・ウチダのSDBHWM最強カードエディットへの道!!". V-Jump, April 2019. Japan: Shueisha, 20 April 2019. (pp. 136-145)
  31. ↑ "@V_Jump" (21 November 2019). Twitter. Retrieved: 23 September 2026.
  32. ↑ "Ｖジャンプ1月特大号付録カード「孫悟空」の使い方がよくわかる!!" (21 November 2019). VジャンプWEB. Retrieved: 23 September 2026.
  33. ↑ "@dbh_10th" (29 November 2020). Twitter. Retrieved: 23 September 2026.
  34. ↑ "WJ52号に「ベジット」のふろくカードがついてくる！ - グッズ". スーパードラゴンボールヒーローズ 公式サイト. Retrieved: 23 September 2026.
  35. ↑ "ジャンプビクトリーパスポート2026". ジャンプビクトリーパスポート2026. Retrieved: 22 September 2026.
  36. ↑ "限界突破 10周年! 英雄の神々からの超お祝いメッセージ!!!". Super Dragon Ball Heroes 10th Anniversary Super Guide. Japan: Shueisha, 26 November 2020. ISBN 978-4-08-779788-6. (p. 10)
  37. ↑ "@PONURU_SDBH" (22 October 2023). Twitter. Retrieved: 22 September 2026.
  38. ↑ "超英雄からのメッセージ No. 7". Super Dragon Ball Heroes: Heroes Memories. Japan: Shueisha, 29 August 2024. ISBN 978-4-08-779820-3. (p. 11)


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