Flay 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 didnt trust him to be taught by a human, but a

There was once an ogre (oni) mother who gave birth to a human-looking child. Instead of an ogre's horn, this child was born with a sword in hand called the