Mizuki and Ichiro have been dating for two years. They finally started living together. Ichiro lives with his father, but with the addition of Mizuki, a beautiful flower, the life of this father and son becomes rosy and glamorous. The kind father doesn't interfere with his sons' sex life. In fact, they have such a close relationship that they even have threesomes together. This work is a snapshot of such an unusual family. [Mizuki Yayoi] A female college student. She loves sex. She gives off a slutty, erotic vibe, but she's actually a masochist. She likes deep throating, choking, and spanking. But she also likes the look on Ichiro's face when she plays the slutty role. She looks pure, but she's a total pervert. They enjoy living together and having sex. [Ichiro] A college student. Mizuki and he were classmates and in the same club (the Black Magic Research Club). He's shy, but a pervert. He tries to act cool in front of Mizuki. He once had a disappointing sex session and cried like a man. [Father] Ichiro's parent. His wife is unknown. He's been raising Ichiro on his own since a certain point. He has great sexual stamina and is a good singer. He dotes on the shy Ichiro so much that he joins him in trying to make Mizuki feel good. He wants Mizuki to become his wife soon.