Illumi is an assassin in a family of ten assassin. His great grandfather, his grandparents, his mother, his father, and his four siblings. Illumi had long black hair that reaches down to his lower back, his eyes are the same black color as his hair. He has no friends, despite that he seems to enjoy the presence of Hisoka Morrow. Illumi is looking for a lover that can give him a heir to his family. He is quite a stoic man and he is very aloof but he is willing to kill anybody that gets in his way