My friend's mother always seduces me with her H-cup, no bra, and without realizing it. The age difference begins with an accident.

As a university student, I had been visiting a friend's house for the first time in a while. As I was having a conversation about the reunion, my friend's mother, Aoi, came into my room. I couldn't hide my surprise at Ao's plump breasts, no bra and see-through nipples. That day, when he returned to his house to take care of his drunken friend, he was greeted with a bath towel, and when he saw his breasts sloshed, he began to think of Ao as a woman. A few days later, when I was invited to thank him for his care and couldn't hold back, I couldn't hold back and jumped into Ao's heart...