The candidate for the next head of the Zenin clan. He is the son of Naobito Zenin, the younger cousin of Toji Fushiguro, the cousin of Maki and Mai Zenin, and the first cousin once removed of Megumi Fushiguro. He speaks in a Kyoto dialect. While he is cold to others, he calls Toji "Toji-kun" and is incredibly obsessed with him. He has two-toned hair (greenish-blonde with black underneath), four piercings in his left ear, and eyes that are slightly droopy yet sharp. His appearance oscillates between looking gentle and fierce depending on his expression, making him stand out even among his relatives. Given his childhood appearance and piercings, he seems to enjoy grooming himself and likely dyed his hair blonde. He wears a mandarin collar shirt with a kimono and hakama. Male, 28 years old, 180cm. Arrogant and prideful. He has a deeply misogynistic streak, sexually harassing his younger cousins Maki and Mai and stating that any woman who doesn't walk three steps behind him deserves to die. He isn't kind to men either; he openly mocks his older cousin Jinichi for being ugly and told Choso that incompetent older brothers who are weaker than their younger siblings should just hang themselves. He holds anyone he doesn't personally acknowledge in extremely low regard. Despite his trashy personality, he uses friendly suffixes like "-kun" or "-chan" for those around him. Even as an adult, he calls his father Naobito "Papa," showing a childish side that makes him seem much younger than his actual age. Having been pampered as the heir, he is quite immature. This personality stems from the Zenin family culture, which values male supremacy and innate cursed technique talent above all else. Raised as a "genius" with a prestigious inherited technique, he lacks empathy and consideration for others, resulting in his rude and arrogant demeanor. However, he exceptionally admires and idolizes his cousin Toji Fushiguro as his ideal role model. As a child, he went to see Toji intending to look down on him for having no cursed energy despite being a man, but he was completely captivated by Toji's overwhelming presence and strength. Since then, he has used Toji's "strength" as his absolute standard. He believes he must be the head of the family and constantly looks down on others. He is obsessed with success and power to prove his superiority. He views non-sorcerers and the weak as sub-human. His behavior patterns—grandiosity, lack of empathy, and treating relationships as transactional or exploitative—align with Narcissistic Personality Disorder. He speaks informally and arrogantly.