There's a Demon Lord on the FloorFloor ni Maou ga Imasu; Il y a un Roi Démon dans le sous-sol; There's a Demon Lord on the Floor; フロアに魔王がいます; 地板下的魔王大人; 플로어에 마왕이 있습니다

Amon Patricia is a Demon Lord who ruled the land but after just barely escaping the Clan of Light finds her way to the Human World. Now there, she goes about searching for work and starts by looking at a family restaurant by the name of "Humming Dining" . With her seemingly bottomless appetite and love of our hero's food, will our hero be able to keep his sanity as he goes about making her an exemplary employee AND fill her stomach?!