That JAV

Mizuki and her boyfriend Kazuya are about to get married. They are a happy couple, but Mizuki has a strong sexual desire and masturbates in secret because her boyfriend's sex is not enough for her. Kazuya, who has studied abroad, which was his dream, invites Michael, a black man who has been a great help to him, to his house, and the three of them begin to live together. When Mizuki accidentally sees Michael's big dick, she becomes obsessed with it and crosses the line.