Mairimashita! Iruma-kun: If Episode of Mafia

Welcome to Demon School! Iruma-kun: IruMafia Edition
魔入りました!入間くん if Episode of 魔フィア
Welcome to Demon School! Iruma-kun: If Episode of Mafia

Manga8.41170 votesPublishing

FantasyOrganized CrimeShounen

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About this title

Synopsis

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! (Source: Kodansha USA)

Publication notes

Mairimashita! Iruma-kun: If Episode of Mafia ranked second in the Best Printed Manga category at the 10th Tsugi ni Kuru Manga Awards in 2024. The series has been published in English as Welcome to Demon School! Iruma-kun: IruMafia Edition by Kodansha USA under the Vertical Comics imprint since August 19, 2025.

Published

Sep 12, 2023 to ?

Authors

hiroja

External links

MyAnimeList page Wikipedia Wikipedia

MAL rank: #269
Members (MAL): 4,398
Favorites (MAL): 66

Related titles

Adaptation

Mairimashita! Iruma-kun: If Episode of Mafia (anime)

Parent Story

Mairimashita! Iruma-kun

Main characters

Iruma Suzuki2070 fan favorites
External profile
Birthday: October 4 Race: Human Affiliation: Misfit Class, Babyls Demon School Family: Human parents (names unknown) Soulmates: Clara Valac, Asmodeus Alice Familiar: Naberius Kalego Iruma Suzuki is the main protagonist of Mairimashita! Iruma-kun (Welcome to Demon School! Iruma-kun). A kind-hearted and extremely unlucky human boy, Iruma is sold to a demon named Sullivan by his negligent parents. Much to his surprise, Sullivan adopts him as his grandson and enrolls him in the prestigious Babyls Demon School. To survive in a world where humans are feared and eaten, Iruma must keep his identity a secret while navigating his new life in the Netherworld. Despite his timid and conflict-averse nature, Iruma quickly proves himself through a combination of empathy, intelligence, and sheer luck. Over time, he grows in confidence, developing remarkable skills in both academics and combat. He becomes an unexpected leader within the Misfit Class and garners respect from both teachers and students. Iruma’s incredible survival instincts were forged during his childhood, having endured countless life-threatening situations caused by his eccentric and reckless parents. From a very young age, he learned how to dodge falling objects, navigate dangerous environments, and avoid trouble at all costs. These abilities, born out of necessity, became second nature and played a key role in his adaptation to demon society. His quick reflexes and unpredictability even allowed him to defeat Asmodeus Alice—one of the top students at Babyls—during their first encounter, shocking everyone and earning Alice’s unwavering loyalty.
Clara Valac1568 fan favorites
External profile
Birthday: May 5 Race: Demon Bloodline Ability: Pandora Affiliation: Misfit Class, Babyls Demon School Family: Eldest daughter of the Valac family Soulmates: Iruma Suzuki, Asmodeus Alice Clara Valac is one of the main characters in Mairimashita! Iruma-kun (Welcome to Demon School! Iruma-kun), known for her boundless energy, eccentric behavior, and infectious joy. A student in the Misfit Class at Babyls Demon School, Clara is instantly recognizable by her chaotic imagination and strong sense of fun. She is the eldest daughter of the Valac family, often helping take care of her many younger siblings, which contributes to both her playful spirit and hidden maturity. Though frequently dismissed as weird by other students, Clara's genuine kindness and humor allow her to form deep bonds with those around her. Among her closest relationships is her connection with Iruma Suzuki, the human protagonist of the series. Iruma himself has described Clara — along with Asmodeus Alice — as one of his soulmates, acknowledging the deep and irreplaceable bond they share. Clara's feelings for Iruma grow over time, shifting from friendship to a budding crush, adding a layer of sweetness to their dynamic. Her Bloodline Ability, Pandora, enables her to reproduce any item she has seen before from her pockets, giving her a versatile and creative edge in both battle and everyday situations. Clara also possesses surprising physical stamina and agility, which she often uses in spontaneous and ridiculous ways. While often played for comedy, Clara represents themes of acceptance, joy, and emotional honesty. She is a crucial part of Iruma's growth in the Netherworld and a fan favorite for her unique personality and heartfelt moments.
Alice Asmodeus547 fan favorites
External profile
Birthday: October 10 Race: Demon Affiliation: Misfit Class, Babyls Demon School Family: Asmodeus Family Familiar: Gorgon Snake Soulmates: Iruma Suzuki, Clara Valac Asmodeus Alice is one of the main characters in "Mairimashita! Iruma-kun" and a top-ranked student at Babyls Demon School. He is a proud member of the noble Asmodeus family and is known for his exceptional magical power and refined demeanor. Upon first meeting Iruma Suzuki, Alice challenges him to a duel, confident in his superiority. However, he is shockingly defeated through Iruma's quick thinking and unpredictability. From that moment on, Alice pledges unwavering loyalty to Iruma and becomes his closest companion and bodyguard, often referring to him as "Iruma-sama." Despite his dignified and serious personality, Alice is highly emotional and deeply values friendship and loyalty. His behavior frequently contrasts his appearance—he is calm and composed in most situations, but becomes overly passionate or flustered when it involves Iruma or Clara. Alice is one of Iruma's two confirmed soulmates, along with Clara Valac, forming the central trio of the Misfit Class. He is also highly protective of both, and becomes increasingly involved in Iruma's journey through the demon world, even growing as a leader and fighter in his own right. He is skilled in fire magic, with his familiar taking the form of a powerful snake. Alice's combination of discipline, power, and devotion makes him one of the most prominent and dependable characters in the series.