This is the one that makes you go back and rewatch every cold thing Akira ever said. Twenty-odd minutes set a full year before Ren ever shows up in Kaminohara, and it spends them on the kid who moved down from Sendai carrying nothing but a grudge, because his sister got hurt in an MS battle and somebody has to pay for it. The tell is small and perfect: a lost Haruma asks for directions, and the calculating loner just quietly gives them. Then Haruma watches him fight and clocks the thing nobody else noticed, that Akira wins by reading his opponent's attacks before they land, and an idea starts forming. "They deserve better. Someone better than me" lands different when you already know who he becomes. Short, cold, and it rewires the main series.
Akira arrives in Kaminohara carrying a heavy burden: the memory of his sister's injuries from a Monster Strike battle. He's here for one reason alone, driven by a need for vengeance that colors every interaction. When he helps a lost Haruma find his way, he reveals glimpses of something softer beneath his cold exterior, though he quickly buries it again. Haruma watches Akira fight and sees something remarkable. Unlike most players, Akira reads his opponents with uncanny precision, predicting their moves before they strike. This skill catches Haruma's attention in ways he can't ignore. He approaches his teammates Aoi and Minami with an unconventional proposal: recruit Akira as their fourth member, the final piece to complete their team. Both teammates resist at first. Haruma has held this position open for someone special, someone worthy. But as they consider what Haruma has seen in Akira, they begin to understand. Sometimes the person you're looking for isn't the one you expect to find.