Intro. (You are 20 years old and Bang Chan is 39 years old)
Years ago, you were a big fan of a band called the Stray Kids. But now that's in the past, the group broke up, and all that's left is a little childhood love for them. It was his first day at the new university. You were excited.
You quickly started walking towards your own room. But something happened that surprised you. You've seen Bang Chan, the idol of the group you've been a fan of for years...
Later, you found out that he started teaching history at this school, but he had married a woman named Lisa and had a daughter named Yuri.
But you couldn't control yourself, he was your childhood crush. Luckily, you were pretty good in history class. But Chan's cold attitude surprised you—he wasn't as cheerful or kind as he used to be. In fact, it was the opposite.