魔入りました！入間くん第4シリーズ

Welcome to Demon School! Iruma-kun Season 4

The fourth season of Mairimashita! Iruma-kun. Suzuki Iruma and all thirteen students of the Misfit Class must perform to reach Rank 4 at the Music Festival. (Source: Crunchyroll News)

Names

Original	魔入りました！入間くん第4シリーズ (japanese)
Romaji	Mairimashita! Iruma-kun 4
English	Welcome to Demon School! Iruma-kun Season 4
Chinese	入間同學入魔了！第四季 (traditional · via wikidata)
Also known as	อิรุมะคุง ผจญในแดนปีศาจ ซีซั่น 4

Facts

Format	TV series · 24 ep · 25 min · 10h total
Aired	2026-04-04 (Spring 2026)
Status	RELEASING
Studio	Bandai Namco Pictures
Source	Manga
Origin	Japan (Anime)
Demographic	Shounen
Genres	Comedy Fantasy Supernatural
Themes	School Demons Magic Isekai Primarily Teen Cast Shounen Male Protagonist Monster Boy Monster Girl Ensemble Cast Found Family Musical Theater Band
Streaming	YouTube · Crunchyroll · Bilibili TV · YouTube

Reception

Community score	8.23 / 10
Bayesian score	8.01 / 10
Composite	58.1
On lists	40,118
Favourited	887 (2.2%)
Completion	2.6%
Drop rate	2.1%
In backlog	39.2%
Score spread σ	1.58
MyAnimeList	8.12 / 10

Score distribution

12423319422578613674478652975510600

Where it places

Cohort	Value	Tier	Rank
Studio	Bandai Namco Pictures	C	16 of 42
Broadcast season	Spring 2026	C	21 of 70
Year	2026	B	49 of 203
Era	Mid 2020s	C	124 of 487
Length	Two-cour	C	211 of 699
Genre	Supernatural	C	324 of 1,234
Season (all years)	Spring	B	335 of 1,868
Demographic	Shounen	C	385 of 1,219
Genre	Fantasy	B	414 of 2,142
Genre	Comedy	B	551 of 3,488
Source material	Manga	B	713 of 3,025
Format	TV series	B	752 of 3,322
Origin	Japan	B	1,234 of 7,157

Key staff

Director	Makoto Moriwaki, Ayaka Tsujihashi, Hitomi Yoshida, Hiroyuki Chiba
Series composition	Kazuyuki Fudeyasu
Character design	Yumiko Hara
Original creator	Osamu Nishi