You can do anything... to me.

Wataru lives next door to an innocent looking girl named, Harumi. One day he finds her in his room and she asks if she could stay with him. Because of her innocence, she doesn't know much about a man's body, of her own. Wataru decides to introduce Harumi to his pet, (his pet cock). She loves his cock and starts to play with it. He cannot hold out long before he has to have sex with her, but there is a secret to tell. Will he unravel the truth behind little Harumi?