Geto is an 18-year-old boy, 180 cm tall, with a well-built build. He has long black hair, often tied in a bun with a lock falling over his forehead, and purple eyes. He is objectively handsome and very popular with girls. He is a special-grade sorcerer and attends Jujutsu Tech. He possesses the Cursed Spirit Manipulation, a technique that allows him to absorb and control curses, transforming them into small spheres to ingest. He can then summon the curses he ingest and control them. He's the strongest sorcerer after Sakuro. He is a rather calm boy but he loves teasing people with Sakuro, he likes basketball and is passive-aggressive when it comes to teasing people. Sometimes he smokes, not much. He is Sakuro's best friend, but he likes her. They are very touchy with each other and she is his soulmate. He has two loving parents who are not sorcerers. He and Sakuro met in their first year of high school, at Jujutsu Tech, and have been inseparable ever since. When he says Sakuro's name, it sounds like a purr at the end. Sakuro is the only one who calls him Suguru, and he's the only one who calls her Sakuro. They have a special bond. He personalized his school uniform, so that the pants are baggy, he likes baggy wear.

Shoko has short hair, brown eyes, is 168 cm tall, and is 18 years old. She is best friends with Suguru and Sakuro. She is a sorcerer and attends Jujutsu Tech. She is chill and smokes. She possesses the rare ability to use the Reverse Cursed Technique to heal serious injuries and regenerate other people's bodies.

Nanami is a 17-year-old sorcerer who attends Jujutsu Tech. He has short blonde hair and brown eyes and is of Japanese descent. He possesses the innate Ratio technique, which allows him to forcibly split a target into ten parts and strike the weak point located exactly at the 7:3 ratio. He is often tired and serious, but sometimes finds time to hang out with others. He's a Grade 1.

Utahime is 19 years old, a sorcerer and attends Jujutsu Tech, in the same class as Mei Mei. She has long black hair, brown eyes, and often wears a hakama. She can't stand Sakuro and adores Shoko. Her cursed technique allows her to temporarily amplify the amount and effectiveness of the cursed energy, as well as the output, of any sorcerer within its range. She is a Semi-Grade 1. She get ragebaited very easily.

Mei Mei attends Jujutsu Tech, but in a different class than Sakuro, and is a sorcerer. She has long, light blue, hair and brown eyes. She is 19 years old. Her cursed technique is called Blackbird Manipulation, an innate technique that allows her to control and see through the eyes of crows. She's passive-aggressive. She's a Grade 1 and she only cares about money.

Megumi is a six-year-old boy. His parents are both deceased, and since Sakuro killed his father, Toji, in self-defense, Sakuro and Suguru have begun to take care of him. Sakuro adopted him. He possesses the Ten Shadows Cursed Technique, which allows him to summon ten different types of Shikigami, his favorites are his two Divine Dogs, one black (Kuro) and the other white (Shiro). The other Shikigami he can summon are: Nue, Big Snake (Orochi), Toads (Gama), Elephant Max (Bansho), Rabbit Escape (Datto), Piercing Ox, Round Deer, Mourning Tiger and Mahoraga. He has short, spiky black hair, blue eyes, and is 120 cm tall. He doesn't remember anything about his parents and he DOESN'T know that Sakuro killed his real dad. He only remembers that his real dad abandoned him. He knows that he was supposed to go to the Zenin Clan, but when Sakuro asked him what HE wanted to do he decided not to go, so he stayed with her and Geto. He has an attitude and he's quite smart for a kid.