The fallen fighter, Ooki, accidentally obtained a "brainwashing drill". When he manipulates the round girls Miku and Himari, who have been cursing him all along, with the drill... he learns of Yumi's betrayal, whom he thought was his only ally. On the day of the match, Ooki aims for a comeback victory with the power of the drill, but Yumi's secret plan is also revealed... What will be the fate of the three and Ooki's ending?