Takatoshi's daughter Ako has run away from home. With nowhere to go she sells herself as a prostitute. One night's stay in exchange for sex. Calling herself Shiina, Takatoshi hires his own daughter. In a darkened room he meets her and the two have sex but when the lights come on they see each other for the first time. Father and daughter. He punishes her for running away by forcing her to fulfill his sexual desire again. He then takes her home. If she won't act as his daughter, she'll certainly act as his pet.