Zenji (ゼンジ, Zenji) is the most powerful Mafia boss under the Ten Dons.
AppearanceZenji is a bald stocky man with a mustache and soul patch. He is usually seen wearing a black suit with a red shirt and yellow tie. He also wears a small pair of sunglasses
Yorknew City arc
He is jealous of Light Nostrade's quick rise through the ranks and very hostile towards him, going as far as punching Light in the face when the latter snubs him in front of other Mafia members in a gathering of the Mafia and some hired assassins in the Cemetery Building on September 3rd.
Later on the same night, when Kurapika follows Light's order to bid for a pair of Scarlet Eyes for his daughter Neon in the Mafia's rescheduled Underground Auction, Zenji keeps raising the bid in order to sabotage his plan. Kurapika still ends up winning the bid but it costs 2.9 billion Jenny, much more than Light expected. Angered, Zenji finds Kurapika outside the building and threatens to kill him with a gun. However, Kurapika, who is in a state of agitation as a result of seeing the stolen eyes of his people, activates his scarlet eyes and paralyzes Zenji for a moment with just a few threatening words.