Kill Bok Before long is a single parent. She is likewise a deadly executioner, with a 100 percent achievement rate on agreement killings. She works for M.K. Ent, which is controlled by Cha Min Kyu. He prepared Kill Bok Soon as an executioner and they hold shared regard for one another. Simultaneously, Kill Bok Before long knows that Cha Min Kyu is a hazardous individual who can remove everything from her. Cha Min Hee is the more youthful sister of Cha Min Kyu and she functions as a chief at M.K. Ent. She doesn't show her sentiments to others. Han Hee Sung is an executioner for M.K Ent. He is exceptionally gifted at his particular employment, yet he isn't perceived by others for his work.