Mischievous Lolita: Attacking the Virgin from Behind (1986)

Orginal title: Itazura Lolita: Ushirokara virgin (1986)

Toru was an ordinary businessman. One day he found a doll in the trash, and he took it home. In the next morning, he heard strange noises in the house, although he was supposed to be living alone. He finds out that the doll has turned into a real girl, naked, wearing only an apron. And they start to live together.