Rival

Heisuke arrives in town with an eye for pretty girls, but his pursuit earns him a punch before he even reaches his new home. There, he catches a girl trying to sneak inside and tries to stop her, hoping for an excuse to grope her—only to recognize her as the same girl who hit him earlier. Her name is Umi, and she is one of three sisters living in the house with their mother. The next day, Umi learns that Heisuke is a boxer whose skill is surpassed only by his lecherousness.