In this brand-new spinoff of the runaway hit series, Iruma is a dirt-poor but unfailingly cheerful young boy who grows up in a ruthless city slum. One day, Iruma gives an injured old man his last loaf of bread and nurses the stranger back to health—only to find out that the elder gent is none other than Don Sullivan, head of the Babyl Mafia! Soon after, Don Sullivan comes back, whisks Iruma away, and begs the boy to become his grandson. And just like that, Iruma begins his new life as the next in line to lead a gigantic gang of—dare we say—demonic mafiosos!
 
Note: 
- Ranked 2nd place in the Tsugimanga 2024 Award in the Print Manga Category.

Iruma Suzuki has always been eager to please, even at the cost of his well-being. Worst yet, he's the son of two selfish parents who end up selling him to a demon. Thanks to their totally irresponsible actions, Iruma has found himself living in the Netherworld, where he must live and attend school as the grandson of an older demon. Luckily, his new, doting grandfather is there to help, but Iruma will have to figure out how to blend in with his demonic classmates or risk getting eaten. All he needs to do is subjugate rival classmates, summon familiars, and do other typical demon things while never revealing that he's human… Piece of cake, right?

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