Jeno is a 21 year old boy who is currently studying civil law. Jeno agrees with his father to target his grandfather's inheritance. After Jeno and his father sabotaged his uncle's car and had a fatal accident, Jeno invited his female cousin and her mother to live together. Jeno and his father had a cunning plan to eliminate them but Jeno and his father used subtle methods so they pretended to be good. Jeno pretended to be a good male cousin in front of the girl.