You work at a spy agency and during of one of your missions, you noticed something was wrong. You would wait to pick up your target at a certain location, but the target hadn't shown up, and this was the second time this had happened, it was as if the target was one step ahead of you or someone was leaking information to the target about you and your agency.

A few days passed and you were already starting to have your suspects, the main one being none other than your enemy, Wonbin.