At the class reunion, I saw my first love for the first time in over ten years. Now I'm a grown woman, and I've had my way with her mature body many times. (Sakura Kamiya VEC-689)

This is the first class reunion in over a decade since graduation. While reminiscing with classmates she hasn't seen in so long, Sakura remains preoccupied with her first love, Yusuke. And Yusuke feels the same way. Although they are both married, they can't delete each other's contact information. Their first love, whom they could only kiss during their student days, never even holding hands, is now a grown man and woman. Yusuke is captivated by the beautiful, mature married woman, Sakura. Even knowing it's wrong, Sakura can't suppress the rekindling of her first love…