Rina's daughter, Noa, was troubled about her boyfriend. Though she has a kind personality, she is indecisive and weak-willed, unhappy with his lack of masculinity. One day, these frustrations exploded. Noa berated her boyfriend, Kotei. Noa left him behind. Feeling sorry for Shoutarou, who is extremely depressed, Rina encourages him. At that moment, Shoutarou tells her that he was raised in a household without a mother since childhood and doesn't know what maternal love is. The gentle nature of Sho-tetsu, the responsibility for his daughter's insults, and his ignorance of a mother's love. Various emotions intertwine, causing Ri-Ri to overflow with maternal instincts towards Sho-tetsu. Sho-tetsu who spoils Ri-Ri. Ri-Ri who finds joy in being spoiled. Eventually, these feelings turn into a relationship where they seek each other out… And Kotei decides to break up with Noa. The action Li Li takes regarding this decision... Twisted affection leads to intense sex.
