It's been 10 years since my virginity was taken by my homeroom teacher who ruined my life.

"My first love and my first experience with my homeroom teacher" is a pure love drama that depicts a secret physical relationship that has lasted over 10 years that no one can tell anyone about. The days of platonic sex that I hid and sought after each other many times in school. Even after graduation, when they meet again at a reunion, the two of them are excited and searching for each other at a hotel. Even after I got married, I couldn't forget about Tsukasa-sensei...