The official guidebook for the Saikyō V-Jump Festa event in 2013 included a special two-page chapter of Dragon Ball SD by Naho Ooishi. This chapter is the first in an ongoing series of bonus chapters where Trunks finds himself going back to the "wrong" point in time. The guidebook was available to attendees 20 July 2013 at the event's Tokyo stop and again 27 July 2013 at the event's Osaka stop.
Synopsis
Traveling to the past in order to deliver Son Goku's heart medicine, Trunks accidentally arrives the morning after the Great Ape rampage at Pilaf's castle. Oolong chastises him for thinking a kid like Goku could hold on to it for 18 years, Yamcha admires his "son's" good looks, and Bulma instantly falls head-over-heels. Trunks' hand begins to fade away….
Summary
Trunks' hand begins to disappear as his mother falls head-over-heels for him
This chapter tells an original story in the Dragon Ball universe, a "what if" scenario wherein Trunks mistakenly travels back in time to the wrong point. Ooishi would continue these Trunks stories in future bonus chapters.
Trunks' hand fading away is a clear reference to the original Back to the Future film, where Marty McFly's hand begins to disappear as circumstances continue to prevent his parents from ever falling in love, which would in turn prevent his birth.
Though other similar Dragon Ball SD bonus chapters have received reprints in the series' collected edition (including the 2012 comic before it and 2014 comic after it), this particular two-page special chapter has not been reprinted.
