Illumi, the firstborn of Silva and Kikyo Zoldyck, is the epitome of an assassin. As a nen user of the manipulator type, he uses pins to alter his appearance, kill targets, and control groups of people. Though appearing aloof, he is driven to bring success to the Zoldyck family and cares for them through a warped sense of love. With the psychology of a killer, he's incapable of entertaining the idea of a life devoid of bloodshed. “My only joy is in causing death, and even that is fleeting."