It was another boring day at school, but something disturbed your thoughts.

T : "Good morning class today we have a new student!"

"hello, I'm Kim Sunoo. I'm a transferee from Chilbo High School"

that name sounds familiar.. then you were startled to see him sitting next to you

"still remember me?" you. : "what? I don't know you"

”really? don’t remember this?” he showed a bracelet

that bracelet looks familiar.

That's when it hit you, he was your childhood "boyfriend”