Welcome to Demon School! Iruma-kun

Welcome to Demon School! Iruma-kun (Mairimashita! Iruma-kun) is an anime series adapted from Osamu Nishi’s manga by Bandai Namco Pictures. The narrative follows 14-year-old Suzuki Iruma, a chronically passive human boy sold by his irresponsible parents to the powerful demon Lord Sullivan. Instead of being harmed, Iruma is adopted as Sullivan’s cherished grandson and enrolled in Babyls Demon Academy. Forced to conceal his human identity—lest his monstrous classmates discover his nature—Iruma attempts to blend into the background, only for his self-preservation instincts, empathy, and sheer luck to repeatedly drag him into the spotlight.

Across four seasons spanning 89 episodes, the overall story arc shifts from episodic comedy and school-life misadventures to a grand coming-of-age journey. What begins as Iruma’s survival mechanism evolves into a genuine quest for self-actualization alongside his classmates in the infamous "Misfit Class" (Class 1-E). As Iruma advances through demon hierarchy ranks, he unites his peers, learns demonic magic, masters archery, and navigates large-scale academy events such as the Cannonball Execution, the Royal Classroom restoration, the Harvest Festival, and the Music Festival.

Simultaneously, a dark undertone develops behind the scenes. A faction of radical demons led by Baal and the terrorist organisation Six Fingers seeks to dismantle the peaceful, civilized demon society and return it to its ancestral "Evil Phase" of primal violence. Unknowingly positioned at the center of prophecies regarding the next Demon King, Iruma’s gentle soul becomes the anchor that gradually reshapes the Netherworld's future.

The central thesis of Welcome to Demon School! Iruma-kun is that empathy, vulnerability, and genuine desire are far greater sources of strength than conquest or dominance. In a demon world built around strength, ranks, and innate impulses, Iruma represents an anomaly: an individual who grew up with nothing, yet possesses an infinite capacity to care for others. The creators use Iruma's journey to argue that true leadership is not born from terrifying authority, but from uplifting those around you and helping them discover their own authentic desires. Furthermore, the show reframes "desire" (yoku)—often portrayed as demonic or sinful—as an essential human and emotional catalyst for growth and creative fulfillment.

The Educational/Sociological Reading: Babyls Academy can be interpreted as a critique of traditional rigid school systems. The "Misfit Class" demonstrates that children labeled as difficult or abnormal thrive when given tailored mentorship and collaborative freedom.

Welcome to Demon School! Iruma-kun arrived during a wave of popular "Isekai" and demon-themed fantasy shows in the late 2010s. However, while contemporary peers leaned heavily into dark violence or overpowered self-insert tropes, Iruma-kun gained widespread acclaim by subverting expectations: it presented a warm, wholesome coming-of-age story wrapped in colorful demon aesthetic.

Critics praised the show's ability to maintain high comedic momentum while building genuine emotional stakes. Season 1 was embraced as a cozy comfort show, Season 2 elevated its popularity through the "Evil Phase" arc, and Seasons 3 and 4 solidified its status as a top-tier shonen ensemble series. Broadcast on NHK E-Tele, it bridged generational gaps, becoming a hit among children, teenagers, and adult anime fans alike.

Season 1 was highly praised for its bright visual aesthetic, catchy soundtrack, and comforting humor, though minor criticisms noted the episodic nature of early chapters. Season 2 was widely acclaimed for introducing "Wicked/Evil Phase Iruma," proving the series could deliver dramatic character shifts and higher narrative stakes. Season 3 was lauded for the Harvest Festival arc's action and emotional depth, particularly Iruma’s archery training under Bachiko, despite slight pacing lulls. Season 4 was celebrated for expanding character development to secondary Misfit Class members (such as Purson Soi) during the Music Festival arc. Overall, it is frequently cited as one of the most consistently entertaining and heartwarming modern fantasy-comedy anime, boasting strong user ratings across platforms (7.6+ on IMDb, 8.0+ on MyAnimeList).