Unable to withstand his sisters' teasing any longer, Yu-yu ran away from home and was brought to an abandoned amusement park by a member of Team Blackout. And that is also where Danji is aiming to get his 20th consecutive win, with Tohya standing in his way for that record.

Yu-yu finds Danji in town and attempts to tail him to find out more, but ended up being discovered. Danji senses Yu-yu's interest in starting Vanguard, and allows him to choose a card to be his buddy. Meanwhile, Megumi misunderstands the closeness of Danji and Yu-yu's relationship, and challenges Yu-yu to a cardfight.