
Mai Zenin (禪ぜん院いん真ま依い, Zen'in Mai?) is a character in the Jujutsu Kaisen series. She was a second-year at student at Kyoto Jujutsu High, a member of the Zenin clan and the younger twin sister of Maki Zenin.
Mai looked identical to her twin sister Maki Zenin, but with her hair cut shorter. She had mid-length black hair (green in the anime) that reached just to her neck with bangs swept to the right side, dark brown eyes and thin eyebrows.

Mai's school uniform consists of the traditional outfit.