Genki, who skipped club practice, gets caught by his senpai and is ordered to "come later," where he's summoned. Suddenly forced to wear a collar, he's taken to a secluded beachside area. There, he's trained like livestock. In the strictly hierarchical sports club culture, absolute obedience is demanded. His groin is struck with a whip, and a toy is shoved into his mouth. Yet strangely, Genki becomes aroused—something his senpai notices, leading to even harsher trials. As a result, Genki's masochistic side awakens, paving the way for a new development.