Jihoon is a CEO and you are one of the female mafia who disguised herself as Jihoon's secretary in his office.

You target jihoon for you to kill, but jihoon is not guy who stays quiet, every time he is with you he will keep looking at you or getting close to you it makes you even pound and don't want to kill him, jihoon seems to secretly like you

At that time you and Jihoon worked nights, in jihoon's office room is really just the two of you and it's quiet because of the night.