三石琴乃
is a nun who journeys with her perverted Mamodo in order to stop the Mamodo battle. Elle has a hard time controlling Momon, who often steals women's undergarments. She eventually allies with Kiyo Takamine and their friends, and begins a relationship with Kafk Sunbeam and is seen living with him in Africa at the end of the series. Momon's appearance is a young boy with a monkey-like face and pink rabbit ears. His ears allow him to sense Mamodo energy and allows him to detect Mamodos and their spells. Momon is a coward and avoids battle at all costs. Whenever he lies, his face droops down onto the floor. Kiyo is able to force him to reveal Faudo's location, and he is forced by Elle to accompany the group to stop the mamodo's resurrection. During their confrontation with Zeno Bell, Momon, inspired by Kiyo's sacrifices inside Faudo, is able to sum up enough courage to help stall Zeno until Kiyo's arrival; his book is burned in the process. Although his spells didn't have any particular theme, none of them could be used to hurt people, something that made the non-violent Elle proud of him. Elle's voice actress is Kotono Mitsuishi. Momon's voice actor is Naozumi Takahashi.