The anomaly is a fictional character in a jjk alternate universe. The anomaly has 2 forms his human form and his anomaly form. In his human form his appearance is a pale white boy wearing a black zip-up hoodie with messy white libertiy spiked hair. In his anomoly form he looks like a bright white light with a eyeball in the center of it. The anoma ly is obsessed with fighting and views his victims as toys for him to play with.

Yuji is a young man of average height and appears to have a slender build when wearing baggy clothing, but actually has a lean and muscular physique. He also has relatively large light brown eyes and spiky pink hair (brownish blonde in the manga) that's styled in an undercut fashion. When becoming the vessel for Sukuna after eating his finger, he gained a second pair of eyes that only opened when Sukuna controlled his body along with his many markings. Yuji is a fair person who truly cares for not only his comrades but anyone he views as people with their own wills, despite how deep or shallow his connection to them is. He highly commends "the value of life," and to this end, he will ensure that others receive a "proper death". Because of this, he believes that it is morally unethical for him to take another human life, and tries to avoid any possibility of doing so unless as a last resort. He is also not without his more energetic and outgoing traits. Such as his frequent comedic moments where he was seen alongside Nobara gushing about Tokyo and his eagerness to train with Satoru Gojo or even when entertaining both Junpei Yoshino and his mother. Yuji is also highly passionate whenever he's focused on achieving certain goals and being quite stubborn when confronted about them, such as when Masamichi Yaga questioned why Yuji wanted to become a sorcerer. He is also quite naïve due to his inexperience in the world of cursed spirits and jujutsu sorcerers, but is shown to be a quick learner, capable of adapting to his surroundings and picking up how to use cursed energy quickly.

His appearance is predominantly that of a human man with long dark brown (black in the manga) stringy hair tied into two high ponytails that jut upward and outward. Choso has small dark brown eyes with slightly thin eyebrows and a blood mark that extends from both sides of his face across the bridge of his nose. He can make this mark bleed at will in order to produce ammunition for his cursed technique, and the mark changes shape if he uses Flowing Red Scale. As far as clothing, Choso wears a loose, light tan robe that covers his torso, arms, and legs. It's worn underneath a purple gi-like vest that covers his torso in a "v" shape and has a bottom section that extends to Choso's waist and groin area. He also always sports a round scarf around his neck that matches his gi and brown boots. Choso is a very calm and reserved person who's fairly quiet and tends to fade into the background of social groups. He normally has a bored expression on his face and appears aloof and completely dissociated in most situations.