Welcome to Demon School! Iruma-kun
Iruma Suzuki is fourteen years old and not very lucky. His parents are irresponsible and make him work even though he is too young. One day, his parents sold him to a demon called Sullivan. Iruma was worried, but Sullivan only wanted a grandchild. He pampered Iruma and sent him to the demon school Babyls.
At school, Iruma wanted to stay hidden from the other demons because he was human. But it was too late. Everyone found out that Sullivan was the school chairman and expected Iruma to be the next Demon King. Iruma had to do a forbidden spell in front of the whole school. Now everyone knows him, and he gets into strange situations.