Monster Strike: Rain of Memories

A year before Ren arrives in Kaminohara, Akira has relocated there from Sendai, driven by a desire for revenge stemming from his sister's injuries sustained in an MS battle. Haruma encounters Akira, who, despite his cold demeanor, offers guidance, showing a more compassionate side. Haruma watches Akira engage in aggressive MS battles, noting his ability to predict opponents' moves. Impressed, Haruma suggests bringing Akira into his team of Aoi and Minami. Initially hesitant, Aoi and Minami agree to trust Haruma's judgment, as he has deliberately held off on adding a fourth team member, waiting for the right candidate.