Welcome to Demon School! Iruma-kun
Welcome to Demon School! Iruma-kun — Quick Overview
Welcome to Demon School! Iruma-kun (魔入りました!入間くん) is a highly acclaimed ongoing school-comedy and fantasy manga written and illustrated by Osamu Nishi and published by Akita Shoten. First launched in 2017, the story blends standard isekai tropes with vibrant underworld adventure and character growth.
| Author / Story : Osamu Nishi | Artist / Art : Osamu Nishi | Original Publisher : Akita Shoten |
| Format & Status : Manga (Ongoing) | Release Year : 2017 | Demographic : Shounen |
| Country of Origin : Japan (Manga) | Primary Genres : Action, Fantasy, Comedy, Romance, Isekai | Core System / Theme : Underworld Academy & Demonic Ranks |
Other Names & Verified AliasesView all
Full Synopsis & Narrative BreakdownRead story
Fourteen-year-old Suzuki Iruma has spent his entire life working grueling jobs to support his incredibly irresponsible and neglectful parents. His fortunes take a bizarre and irreversible turn when his parents sell his soul to a high-ranking demon named Sullivan. Expecting to be immediately devoured, Iruma is instead shocked to discover that Sullivan is a lonely, doting grandfather figure who wants nothing more than to officially adopt him as his beloved grandson. Placed in the comfortable care of this powerful demon lord, Iruma is enrolled in Babyls Academy for Demons.
However, there is a dangerous catch: if any of his classmates or teachers discover that he is a human, he will be instantly eaten. To survive, Iruma must conceal his humanity while navigating a hyper-competitive, magic-filled school structure. Despite having zero native magical ability, his legendary avoidance reflexes—honed by years of surviving dangerous tasks forced upon him by his parents—help him inadvertently perform spectacular, seemingly magical feats. Through sheer kindness, extreme luck, and accidental heroism, he quickly catches the attention of elite demons, including the model student Alice Asmodeus and the energetic Clara Valac. As he climbs the school's hierarchy ranks, Iruma transitions from a terrified survivor into a beloved leader who brings a refreshing wave of empathy to a world ruled by strength and ambition.
What to Expect
Expect a lighthearted yet narrative-dense school comedy that perfectly balances progressive rank climbing with engaging supernatural battles. The pacing keeps the story fresh, moving from slice-of-life classroom antics to high-stakes tournaments where strategy, trust, and creative problem-solving are valued far over raw, brute-force magic. The underworld setting is extraordinarily well-developed, complete with its own distinct ranking systems, ancient demonic bloodline abilities, and family house politics.
Who Will Enjoy This
This series is best suited to readers who enjoy underdog stories, comedic school dynamics, and character-driven fantasy. Fans of fantasy worlds with detailed hierarchical ranks, dynamic combat structures, and zero-to-hero progression through emotional intelligence and tactical maneuvering will find Iruma's journey highly satisfying.
Thematic Internal Recommendations
If you love comedies set in demon-dominated settings, check out Beelzebub, where a delinquent teenager is forced to raise the infant son of the Great Demon King, sharing a similar blend of chaotic underworld school comedy and light action. Alternatively, for those who enjoy protagonists lacking native magic who must bluff their way through elite magical academies using unconventional physical capabilities, Mashle Magic and Muscles provides a hilarious and action-packed parallel.
Key Early Characters (Iruma, Alice, Clara, Ameri)View cast
Frequently Asked Questions3 Answers
The series follows Suzuki Iruma, a good-natured human boy sold to a demon by his neglectful parents. Surprisingly, the demon adopts him as a grandson and enrolls him in a demon academy, forcing Iruma to hide his humanity to avoid being eaten.
The fantasy-comedy series is written and illustrated by Osamu Nishi. Serialized in Akita Shoten's Weekly Shōnen Champion since March 2017, her highly detailed world-building, expressive character designs, and comedic timing have earned widespread critical and commercial acclaim.
Yes, the manga series is actively ongoing. It continues to release new chapters weekly in Japan, tracking Iruma’s progress through the grades of Babyls Academy and his ongoing rise through the ranking system of the demon world.