Umehito who is commonly referred to as "Nekozawa," is depicted as a hooded figure who is never without Beelzenef, the curse doll, which is actually no more than a hand puppet that looks like a cat. Despite displaying a frightening disposition and strange hobbies, Nekozawa is actually a very nice and considerate person. He suffers from Photophobia (sensitivity to light), which causes him to collapse in direct sunlight and as a result, whenever he is dragged towards any light source, he will refer to the people who do so as "murderers." Nekozawa is devoted to his little sister, Kirimi; so much so, in fact, that he asks the Host Club to help him become the "princely-big brother" Kirimi wishes him to be. He is of Russian descent from the Tokarev dynasty, whose wealth comes from the sale of firearms.
As the President of the Black Magic Club, Nekozawa attempts to get people to join by offering a free "Beelzenef" hand puppet upon admission, but he ultimately fails in this endeavor. Apart from the hand puppet, he also sells cursed voodoo doll versions of Beelzenef which are claimed to bring a shower of misfortune to the person whose name is written on its back. Tamaki Suoh is shown to be quite superstitious and nervous around Nekozawa as he has allegedly experienced malinten