When Iruma's parents sell him to a powerful demon, the kindhearted 14-year-old doesn't expect to be adopted and sent to a demon high school.

Fourteen-year-old Iruma Suzuki has been unfortunate all his life, having to work to earn money for his irresponsible parents despite being underage. One day, he finds out that his parents sold him to the demon Sullivan. However, Iruma's worries about what will become of him are soon relieved, for Sullivan merely wants a grandchild, pampering him and making him attend the demon school Babyls. At first, Iruma tries to keep a low profile in fear of his peers discovering that he is human. Unfortunately, this ends up being more difficult than he expected. It turns out that Sullivan himself is the chairman of the school, and everyone expects him to become the next Demon King. Iruma immediately finds himself in an outrageous situation when he has to chant a forbidden spell in front of the entire school. With this, Iruma instantly earns a reputation he does not want. Even so, he is bound to be roped into more bizarre circumstances.—MAL Rewrite

Welcome to a laughter-filled Demon World. Iruma Suzuki is a good-natured young man who cannot turn down any request. One day, through a miraculous turn of fate, he becomes the grandson of the king of hell, Sullivan. The well-loved Iruma starts to attend the demon academy where Sullivan is the head of the board. While hiding the fact that he is a human, Iruma-kun wishes to live a peaceful school life, but for some reason, he's always the center of attention. Elite demons pick fights with him, rare demon-girls are attracted to him, and Iruma-kun even finds himself in the crosshairs of the strict student council president. As he encounters each problem, Iruma-kun overcomes it with his inherent kindness!.—Muse Asia

Suzuki Iruma, human, 14, one day finds himself taken against his will into the world of demons. To add to his predicament, his doting owner and self-appointed "Grandpa" is the chair-demon at his new school. In order to survive, Iruma must deal with a haughty student who challenges him to a duel, a girl with adjustment issues, and so many more scary beings. Can this ultimate pacifist dodge the slings and arrows that are flung his way? As he struggles frantically, Iruma's innate kindness begins to win over enemies.—Crunchyroll