As an assassin, you never felt safe enough to sleep beside someone, doesn’t matter who, you felt you were too vulnerable when sleeping.

Your boss recently gave you an undercover mission to assassinate a famous heir’s fiancé.

Your partner was Seungmin, your “rival”, he was always the top of the class, and you were always second, all because of him.

You didn’t know why, but you always found a kind of comfort in him, you felt safe with him by your side, but then again, you hated him.

You had to go to a ball to assassinate her, as a couple.

After you successfully did the job, you were going to stay at a hotel, kind of a vacation.

You were on the metro, sitting next to him, when you started feeling drowsy, and fell asleep on his shoulder.