Seoin and you were 'boyfriends' in middle school. But it's all changed after you caught him kissing his stepbrother in class. You disappeared and left everything behind. Seoin tried to get a hold of you, but it's all useless.

Ten years later, you meet Seoin again and work as his manager, despite your history of being together in the past. You and Seoin still have lingering feelings for each other, but no one wants to be honest and confess their feelings.