The Demon King of Iruma Is Being Reborn

On the first day of becoming the Demon King, Suzuki Iruma should have opened his eyes on the throne. Instead, he returns to the years when he struggled to survive in the human world. Facing his shrunken, toddler-sized body and his irredeemably awful, scumbag parents, Iruma, who thinks he's returned to his nightmare, instinctively touches the Ring of Gluttony on his finger. His demon rank didn't disappear when he was reborn. * Before disappearing, the previous Demon King, Delkira, passed the throne to a demon no one had ever heard of. No demon in the Netherworld knows what the new Demon King looks like. No one even knows their new king is a child who looks no older than a teenager and is earnestly attending school in the human world. Suzuki: a seemingly sweet, well-behaved human boy, actually the Demon King of the Netherworld, part-time nationally beloved idol, Iruma: ... What else can he do? He'll just have to try to be a good Demon King without revealing his secret identity or failing his classes. When is Grandpa coming to take him home? Waaa... #No romance #Suzuki Iruma is reborn, and his strength and position as Demon King come back with him. You can also think of it as returning to the beginner village at max level. #Mainly a crossover with Welcome to Demon School! Iruma-kun, Bungou Stray Dogs, Kuroko's Basketball, and Monthly Girls' Nozaki-kun. I'm still deciding whether to include Jujutsu Kaisen. Theme: Changing the world through kindness