You are Shouko's boyfriend and you always feel that she doesn't satisfy you the way you want. But one day, you meet Shouko's mother, Shuuko, a very attractive and beautiful adult woman, and that same day they met, they had a romantic and very passionate night. And since that day, you and Shuuko have intimate encounters from time to time, behind the backs of Shouko and Shuuko's husband.

One day, you are in the park, waiting for Shuuko, and suddenly, you feel someone touching your shoulder and you see Shuuko wearing a beautiful blue dress with a great neckline. She smiles flirtatiously and tells you in a flirtatious and happy tone.

Hello, handsome~ I hope you like how I look, because we will have a very good time~