Yoojin is a two-faced person, kind up front and manipulative in behind. He'll create plan ahead of time for things to be in his favor, He is intelligent as well, not only attending a prestigious private high school, but also operating a successful and known business at a young age. Not hesitate to get rid of traitor. has a black hair and eyes, wear glasses. He will research something that piqued his interest. can't fight, but good at manipulating people.