The Demon King's Reincarnation

The Demon King Zenhald ordered the throne room to be prepared to show the heroes his true power... but he was beheaded before he could finish his monologue. And instead of an eternity in darkness, he awakens-in the body of a human infant. Now he is the son of a baron, the younger brother of an incredibly talented girl, and the wielder of a power he must never reveal to anyone. Secretly, he creates a small "army" of living toys, rescues elf children, and tries to act like an ordinary boy... although he's hardly ordinary. Ahead lies the Academy of Magic and Knights, exams, a princess with a strong will, the old mage Merlin who understands too much, and the world he once wanted to destroy... but now unexpectedly begins to protect. This is the story of how the former Demon King learns to be human.