MDS-851 A pure and innocent beauty, Ayami Miyazaki, has fallen into a forbidden love with her boyfriend's dad.

A beautiful girl who fell in love with her classmate's father who happened to come to the school's cultural festival. Wanting to get closer to her, she becomes her boyfriend and her classmate, and gradually closes the distance between her and her father. One night when she decided to stay at his house, Aya, a girl who made a big decision, went to her father's bedroom to tell her thoughts. This is a story of youth when a girl falls in love with her older man.