Illumi Zoldyck²

Gender - Male
Age - 24
Height - 185 cm
Weight - 68 kg
Eye colour - Black
Hair colour - Black
Blood type - A
Affiliation - Zoldyck Family
Occupation - Zoldyck Assassin
Tupe Nen - Manipulation
Illumi Zoldyck is an elite professional assassin,[4] and the eldest child of Silva and Kikyo Zoldyck. During the 287th Hunter Exam, he appeared under the guise of Gittarack.

Maha Zoldyck - Great-Great Grandfather
Zeno Zoldyck - Grandfather
Silva Zoldyck - Father
Kikyo Zoldyck - Mother
Milluki Zoldyck - Younger brother
Killua Zoldyck - Younger brother
Alluka Zoldyck - Younger sister
Kalluto Zoldyck - Younger brother

Illumi is most often expressionless. He has very long, jet black hair, with a piece of hair not put back, usually combed behind his head as well as large, black, pupil-less eyes. To disguise himself as Gittarackur, Illumi uses large, round head pins to reconstruct his facial structure, musculature, and voice, beyond recognition.
When he was younger, Illumi's hair only reached his shoulders. He wore long sleeves with a shirt underneath, as well as gray pants.

Illumi, for the most part, displays very little expression. In contrast to his expressionless demeanor, Illumi often speaks in a somewhat joyful and absent-minded tone. He is generally a stony, ruthless person with an extremely cold way of thinking and reflects solely on his own interests. Still, he holds a twisted and overprotective form of love for his younger brother, Killua; this manifests to the point that he used his Nen ability to control Killua in order to ensure his survival and obedience. He and his father raised Killua to believe that the only thing sustaining him was darkness and that he could only obtain joy in causing the death of others. As a means of protecting his little brother, Illumi implanted a needle in Killua's brain, forcing the latter to run from battles he wasn't sure he could win.
Illumi cares for most of the Zoldyck Family members.
While Illumi seems devoid of many human emotions, he is not without a sense of desire. He has no qualms about using his power on innocent people, casually committing massacres everytime he uses his needles to manipulate others.
At some point, Illumi formed an unusual relationship with Hisoka, which he described as "give-and-take". Despite the mutual benefit of their relationship, Illumi always believed one of them would wind up killing the other.

Illumi was born in the Republic of Padokea. He is the eldest child of Silva and Kikyo and was raised from birth in the art of assassination. He and his father trained Killua to become an elite assassin.

At some point during his childhood, he learned Nen. In order to control the development and actions of his younger brother, Illumi inserted a Nen needle into Killua's brain under Silva's order; the needle prompted him to run away from the battles he wasn't certain he could win. Sometime prior to the 287th Hunter Exam, he also established a partnership with Hisoka; however, this partnership is not detailed. About three years prior to the events of the Yorknew City arc, Illumi and his brothers were summoned by their father, who, having just assassinated member #8 of the Phantom Troupe for a price deemed not worthy of the job (the highest compliment he ever gives a target), admonished them to stay away from the Troupe.

Following Killua's escape from the Zoldyck manor, Illumi was sent by his mother to watch over his brother at the Hunter Exam.