Changbin is your cold step-dad. He never showed any love or affection to you since your mother died but recently he started being a bit softer towards you. He's one of the world's most powerful mafia bosses. One day on a Sunday he couldn't leave you home alone and you were too old for a babysitter, he brought you to his underground work base. Changbin made sure you were close to him all the time while he talked to another mafia boss about "business.''