Rival

Heisuke arrives in town with a mischievous agenda, quickly finding himself on the receiving end of a punch after chasing pretty girls. His new living arrangements bring an unexpected surprise when he encounters a girl attempting to sneak into the house, only to discover it's the same girl who punched him earlier, Umi. As it turns out, Umi is one of three sisters living with their mother in the house. As Heisuke gets to know Umi, he learns that she's not one to be trifled with, especially after discovering his own passion for boxing. However, Heisuke's lecherous nature often eclipses his athletic prowess, leading to a series of comedic misadventures. As he navigates his newfound relationships and boxing ambitions, Heisuke must confront the ultimate question: which desire burns stronger within him - the thrill of victory in the ring or the allure of romance?