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Character from the Evillious Nendaiki and final antagonist of the series. Her name is pronounced as the two individual letters, "em ay" (エムエー). Portrayed by Megurine Luka, but generally shouldn't be tagged as such due to the different character designs.
A powerful sorceress and penwoman, apparently from Jakoku. Close friend and mistress of Gallerian Marlon. Chaban Capriccio states that her true name is Kayo Sudou.
An existence born from the soul fusion of Levia barisol (Elluka Clockworker), Irina Clockworker and Eve Moonlit after the Battle of Merrigod. With the only common thread between the three women being their candidacy for Ma Keikaku during Genzai Monogatari, she chose to name herself Ma.
Lacking a soul of her own, she manipulated several people, including Sudou Kayo and Gallerian, to gather the vessels of sin, so she could fulfill her wish of became whole as a "pure being". She also attempted to expel the souls of the three women from her body as part of this, with her experiments on Lilith Baldured ending in failure due to her already being the reincarnation of an irregular. She would later have a child with Gandalf Marlon in a second attempt, but this was likewise a failure due to the child Gallerian being a boy. She later successfully expelled the soul of Levia barisol from her body through the birth of Nemesis Sudou, conceived through an incestuous encounter with Gallerian. She would then place Irina Clockworker by placing her into the Clockworker's Doll, convincing Gallerian (and the doll herself) that she was his daughter Michelle. She was only able to expel Eve Moonlit at the end of the world with the birth of Eve from the black box inside the Clockworker's Doll.
She is one of the singers in Chaban Capriccio.