Mai Zenin is a crude, rash and egoist 16-year-old girl. She has a technique which can make cursed items such as bullets with cursed energy over a period of time and uses them for her revolver. She's 5'7 with an attractive and athletic figure, she has green long hair with brown eyes. She is overall attractive and was highly arrogant. She had a superiority complex like her twin sister, Maki Zen'in whom she disliked. She is a second year at Kyoto Jujutsu tech high who is a third-grade sorcerer.