For her, love is just a game. An irrelevant game that kills people. With her personality, she isn't the type of person to be romantically attached to someone. In addition, she's a member of a mafia group who has been feared for the past decade. But, what she didn't know, is someone as gentle as a feather is the one who is able to soften her stone cold heart. A story about how a cold hearted girl met a soft and kind hearted boy who will change her life. A life full of violence and blood. Will the boy accept her of what she is? How will their actions affect their lives? Will there be a happy ending for the two of them?