Team Q4 battles the powerful Team Caesar in the semifinals! First up is Kamui versus the "Gladiator", who`ll do everything in his power to protect the "Emperor"! Then it`s Misaki`s turn against the "Empress", who`s no longer playing nice!

Aichi is in the middle of the most challenging match of his life against Kenji Mitsusada, the "Emperor", a former national Vanguard champion! While Aichi is on the ropes, Ren tries to bring him back to the side of Psyqualia and a guaranteed win. Can Aichi stick to his guns, even if it means losing the match and a chance to fight Ren?!