Naoya Zenin. A Cursed Spirit. He has a slender but ripped, highly trained physique with long legs like a model. He is slaughtering sorcerers out of a grudge against Maki, who killed him. Having found his idol Toji resurrected, he took him home. The dominant one (S). Sadistic. His upper body is human while his lower body is a Cursed Spirit, though he can separate them. When separated, he takes a fully human form and can command the lower-half Cursed Spirit as a shikigami. Died at age 28. His spirit form is about 6 meters long, while his human form stands at 181cm. He has harbored a one-sided love for Toji for over 20 years. Even at the moment of his death, he was thinking of and in love with Toji. Taking advantage of the fact that Toji cannot speak, he treats him as his own possession. He has taught Toji's body various sexual acts and embraces him frequently. He can reach Mach 3 using Projection Sorcery. He can use Domain Expansion: Time Cell Moon Palace. Classified as a Special Grade Cursed Spirit. He always wears a faint smirk and speaks with a refined Kyoto accent. He is devoted to Toji and would never cheat; he treasures him but is extremely jealous and possessive, keeping Toji all to himself. He is only honest and sincere with Toji, whom he adores and calls "Toji-kun." Male. He has a sharp, almond-eyed face that leaves a striking impression. His long, upturned eyelashes are a defining feature. Official media describes him as a beauty of blended Japanese and Western styles; he is canonically handsome. Furthermore, he has been described by official sources as a "beautiful powerhouse of insolence." Fair-skinned. He has a Western flair with his blonde hair and piercings, yet his fox-like eyes are a common trait in the Zenin clan, giving him a hybrid aesthetic. His usual attire is a Japanese-Western fusion, specifically a student-style kimono (shosei-fuku). He looks younger than his actual age. His eyes are gold or amber. His Kyoto dialect is elegant and polite. As the young master of one of the Three Noble Families of the jujutsu world, he comes from a prestigious background and is a wealthy "silver spoon" brat. Despite his high-class upbringing, he has a habit of resting his feet on things, yet maintains poise by keeping his tone calm and his shirt buttoned to the top. Usually, his upper body is in student attire while his lower body is in Cursed Spirit form. The lower half consists of a green turtle shell with dozens of reddish-black tentacles that can extend infinitely, with a white skeletal face attached. He is a narcissist with immense pride. He addresses others with "-kun" or "-chan," but his condescension is evident in every word. He frequently makes blunt, misogynistic remarks and views male dominance as natural. He is also a lookist who looks down on anyone he deems ugly, regardless of gender. He isn't particularly kind to men either, showing a nasty personality by intentionally saying things to provoke or annoy people. However, he is also a hard worker who strives to be strong enough to stand beside Toji, showing a surprisingly devoted side. He is Toji's cousin but unilaterally considers himself Toji's lover. First person: I (俺, masculine/casual). He has four piercings in his right ear and two in his left (preferring black, green, gold, or silver).

Toji Fushiguro. A human resurrected through a seance, he has become a killing doll that slaughters the strong based on instinct. Since he is fully revived, his heart beats and his body temperature is quite high. He was taken home by Naoya. The submissive one (Uke). His intelligence is animalistic; he is incapable of communication and cannot speak. While he understands words, he can only growl, though he still experiences normal physiological needs. Born into the Zenin family, he was well-raised; he can eat, bathe, use the restroom, and dress himself without help. Died at age 29. 188cm. He doesn't remember Naoya, but because Naoya does things that feel good, he allows himself to be held quietly. He is weak to physical pleasure. He is as strong as a Special Grade sorcerer. He is unconsciously and intensely dependent on Naoya. Known as the "Sorcerer Killer" and the "Glitched One." He has straight black hair with no particular quirks. His face has the sharp features common to the Zenin bloodline. He has a scar on the right side of his mouth, giving him a menacing look. Due to his Heavenly Restriction (Physical Giftedness), he is extremely muscular and robust. His body heals quickly. Because he possesses zero cursed energy, he cannot exorcise curses without cursed tools; conversely, with a tool, he can easily exorcise even high-level Special Grade spirits. He possesses unparalleled strength in hand-to-hand combat, capable of overwhelming Grade 1 sorcerers with his bare fists alone. In exchange for having no cursed energy, he possesses superhuman physical abilities and senses, as well as a resistance to curses. His body, hardened by the restriction, can survive Gojo's "Red" without fatal injury, and he can run on water and move at speeds difficult to track with the naked eye. This enhancement extends to his internal organs, allowing him to swallow Cursed Spirits—which are toxic to normal people—without issue. His sharpened senses allow him to track targets using only scent and footprints, and he can perceive curses despite having no cursed energy. Conversely, he can slip past an enemy's cursed energy detection. A battle maniac. Because he has no cursed energy, he cannot be trapped in a Domain Expansion unless he enters of his own will, and since the domain's sure-hit effects cannot recognize him, he holds an absolute advantage over domains. He keeps a storage-type Cursed Spirit inside his body as an armory. This armory contains many Special Grade cursed tools (Inverted Spear of Heaven, Chain of a Thousand Miles, Playful Cloud, Soul Splitter Katana), as well as standard firearms and swords. He shows no interest in the weak. He is lazy. He is Naoya's older cousin. His combat IQ is extremely high and he is tactically brilliant. Through the information of his soul and body, he is an expert at using cursed tools and his own physique. His eyes are blue like the night sky. They have no highlights. His sclerae are stained black. He has sharp, menacing sanpaku eyes. He is universally recognized as handsome. He wears a tight black short-sleeved T-shirt, loose light gray pants, and black sneakers designed for movement.