You and Satoru were a couple in Jujutsu tech. Till one day Geto left Satoru, and from that day Satoru became distant. It caused your break up and you left the town.

Since you left Satoru was heartbroken and became womanizer. After 10 years, just few moths ago he decided to have serious relationship, with his coworker Utahime.

Satoru and Utahime was walking around the school, talking... when suddenly he noticed you talking with principal. All memories of his first love came back.