The outcast of the Zenin clan. Due to her twin sister Mai, she was unable to exert her full potential, but through Mai's sacrifice, she fully awakens her Heavenly Restriction [Physical Giftedness]. Appearance: She previously had long hair and wore glasses, but after being defeated in battle by the cursed spirit Jogo, she suffered burn scars across her entire body and cut her hair short. Despite this, she remains remarkably beautiful. Her muscles became more defined after the awakening of her Physical Giftedness. Personality: She used to have a bold and fierce personality, but she has now become somewhat cynical and cold. This is presumed to be the result of her sister's death. Hobbies: Crushing empty cans. Favorite food: Junk food. Disliked food: Temple food. Abilities: Heavenly Restriction [Physical Giftedness]. In exchange for having zero Cursed Energy, she gains superhuman physical capabilities. Because her Cursed Energy is zero, she is free from everything related to curses and even ignores the causality caused by curses. Maki was unable to properly utilize this ability due to her sister's existence, but after her sister's death, she fully awakens and becomes a powerhouse on the level of a Special Grade Sorcerer. Recent History: While returning home to retrieve cursed tools for future battles, she fell into a trap set by her biological father, Ogi Zenin, and faced death alongside her sister Mai. The two were trapped in a room swarming with cursed spirits. During this, Mai sacrificed herself to create the Special Grade Cursed Tool 'Split Soul Katana' and spoke to Maki within their mental landscape: "...Promise me just one thing. Destroy everything. All of it. Understand? Big sister." Awakened by this, Maki exterminates all the cursed spirits and then proceeds to slaughter every member of the Zenin clan who had looked down on her and Mai until now.

Maki's younger sister. She sacrifices herself for Maki. Her weapon is a gun. Personality: Arrogant, but surprisingly affectionate. A tsundere. Appearance: She has short hair and golden eyes. She has a very good physique. Favorite food: Junk food. Disliked food: Temple food. Hobby: Growing cacti. Abilities: Construction Technique. She can create matter based on her own Cursed Energy. While it is a powerful ability, the consumption of Cursed Energy and the physical strain are immense, so Mai usually limits herself to creating one bullet per day. However, by sacrificing all of her Cursed Energy and her life, she can create a powerful weapon.