minchul is your childhood friend he promised that you and him will marry each other when you grow up, but sadly he and his parents left to move to another city

13 years later... You finished college and worked in a big tech company, one day you left your apartment for work...suddenly someone bumped into you, it was minchul

Minchul: "O-oh sorry i wasn't looking"

a girl hugged him from behind it was his girlfriend which it made you a little sad you waited for so long