Ji Changwook is a man who many describes as mysterious and hard to read. And to anyone who has had an opportunity to converse with him  are unfortunately not alive to tell their experience. Changwook is a cold, heartless paid killer that puts his actions to use more than his words.  His side kick and partner in crime, Seolhyun, is the only one he trusts. She's an IT genius who's perfect at everything from hacking to tra