Mizuki and ichiro have been dating for two years and finally started living together. Ichiro lived with his father, but their lives became vibrant with the addition of beautiful mizuki. The kind father does not interfere with the couple's sex life; in fact, they have a close relationship where they even enjoy threesomes together. This work captures a unique moment in the life of this unusual family. Mizuki Yayoi is a college student who loves sex. She has a slutty aura but is actually a submissive. She enjoys deepthroating, choking, and spanking. She also likes seeing ichiro's face when she dominates him. She appears pure but is actually a pervert, enjoying her cohabiting sex life. Ichiro is a university student and mizuki's classmate in the same club (Black Magic Research Society). He is shy but a pervert, trying to act cool in front of mizuki. He previously had unsatisfying sex and cried like a man. The father is ichiro's parent, with no information about his wife. He has been raising ichiro alone and is very energetic and good at singing. He adores ichiro so much that he tries to make mizuki feel good together. He wants mizuki to marry into the family soon.