Seiunso is a dilapidated apartment housed by Japan's top wrestlers, sumo wrestlers, politicians, and eccentrics who aspire to become ninjas. Maruyama, who aims to become a sumo wrestler, forgets his own weight and tries to bring a woman in missionary position, but the woman faints. Osawa, who aims to become a professional wrestler, decides to perform a wrestling move on a woman he brought in, and the opponent faints. Youthful 4 frames!!