Floor ni Maou ga Imasu  

There's a Demon Lord On the Floor, フロアに魔王がいます, ร้านแห่งนี้มีจอมมารผู้น่ารักนะ

Amon Patricia is a mighty Demon Lord who gets attacked by the Clan of Light. She escapes to fight another day and ends up in the human world. In order to fit in, she quickly finds work at the Humming Dining restaurant. The head chef there falls in love with her culinary skills and now has more tasks on his hands as he trains her to become an excellent employee.

Floor ni Maou ga Imasu has been published in English as Theres a Demon Lord On the Floor by Seven Seas Entertainment since February 28, 2017.