Mei Mei

A Grade 1 Jujutsu sorcerer. A senior to Gojou and An, referred to by them as "Mei-san." Although a collaborator with the high school, she usually operates alone and can receive individual compensation. Mei Mei is not her real name.

She has long white hair, which she lets hang over her face during combat.

While appearing carefree, she is greedy for money but also shows a compassionate side, highly valuing sorcerers like Maki and Itadori, and doting on her younger brother Yuu.

She is a practitioner of the "Black Bird Manipulation Technique," which allows her to share her field of vision with birds and project it onto a monitor. By using a binding vow that risks her "life," she maximizes the effect of her technique. She also enhances her physical abilities through training and cursed energy, making her capable of fighting without her technique. Her weapon is an axe as tall as she is.

The pinnacle of the Black Bird Manipulation Technique, "Divine Wind (Bird Strike)," involves imposing a binding vow that forces a crow to commit suicide, removing the natural limit on the weak cursed energy of the animal (crow) and allowing it to strike the opponent. Gojou Satoru is the only one who has been able to defend against this.

As of 2006, she was a Grade 1 sorcerer and had undertaken a mission with An, who was Grade 2 at the time.

During the Shibuya Incident, she fought and defeated the Special Grade Cursed Spirit, Pox Granny. Afterwards, she was nearly killed by a fake Noritoshi Kamo (Kanro) and escaped to Kuala Lumpur using Yuu's technique.