I'm gloomy and dull, but I had a dangerous desire to make the school's busty honor student, Maina, my sex slave pet. I've always had a strong desire to make her all my own, with her white skin, bursting breasts, round eyes... One day, by chance, she enters a love hotel with an older man. I witnessed ... At that moment, the devil inside me whispered. If you threaten her with that fact as a joke, she's a good girl who knows what she's doing.