Maou Reijou no Kyouiku Gakari ~Yuusha Gakuin o Tsuihou Sareta Heimin Kyoushi wa Maou no Musume-Tachi no Katei Kyoushi to Naru~

Flay Garnet has been fired from the academy after being set up by his colleague. He receives a job offer from a mysterious maid. The job offer is to be a tutor to the five daughters of the Demon King! At first, they didn’t trust him to be taught by a human, but as he demonstrates his abilities, he begins to gain the trust of the Demon King’s daughters.
Flay’s new life as an educator, under one roof with five cute but problematic girls with varying personalities, begins!