Welcome to Demon School! Iruma-kun Season 4
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Anime DetailsFINISHED

Format
TV series
Episodes
24
Episode length
25 min
Total watch time
10 hours
Status
Finished
Aired
April 4, 2026 – September 26, 2026
Season
Spring 2026
Source
Manga
Original creator
Osamu Nishi
Age rating
PG — Teens 13 or older
Country
Japan
AniList score
81/100
Estimated watch time
10h
⚡ 5 days at 5 eps/day

Tags & Tropes

Shounen90%School87%Magic85%Demons84%Primarily Teen Cast83%Male Protagonist80%Isekai77%Monster Boy75%Monster Girl75%Found Family75%
TVFINISHED2026 SPRING8.1 / 10 AniList score

Welcome to Demon School! Iruma-kun Season 4

魔入りました!入間くん 第4シリーズ• Mairimashita! Iruma-kun 4
overview details

Synopsis

Suzuki Iruma and all thirteen students of the Misfit Class must perform to reach Rank 4 at the Music Festival. (Source: Crunchyroll News)

Main cast & voice actors

Should you watch Welcome to Demon School! Iruma-kun Season 4?

Yes, if you enjoy comedy, fantasy and supernatural, especially stories with shounen, school, magic.

Fans rate it highly: 81/100 on AniList, with 76% of 5.9K ratings at 8/10 or higher. It's the #27 highest-rated anime of 2026.

Once people start, they tend to finish: only 2.3% of viewers drop it.

Watch Welcome to Demon School! Iruma-kun Season 3 first: this continues its story.

At about 10 hours in total, plan on one to two weeks at a couple of episodes a day.

Where to Watch Officially

Availability, audio and subtitles vary by region and service.

Episodes

24 episodes are listed.

Creators & key staff

Original creator
Osamu Nishi
Series composition
Kazuyuki Fudeyasu
Character design
Yumiko Hara

Where it fits in the series

Full franchise watch order

Opening & ending themes

Openings (1)

  1. OP1“Ichi Ni San” by Penthouse · eps 1-

Endings (2)

  1. ED1“Super Yuushou Tune!” by CANDY TUNE · eps 1-6, 8-
  2. ED2“Lilith Carpet” by Abunoumaru Class · eps 7

Theme data from AnimeThemes.moe.

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Welcome to Demon School! Iruma-kun Season 4 FAQ

How many episodes does Welcome to Demon School! Iruma-kun Season 4 have?

Welcome to Demon School! Iruma-kun Season 4 has 24 episodes of about 25 minutes each, roughly 10 hours in total.

How long does it take to watch Welcome to Demon School! Iruma-kun Season 4?

About 10 hours back to back. At two episodes a day it takes 12 days; at one hour a day, about 10 days.

Is Welcome to Demon School! Iruma-kun Season 4 finished?

Yes. Welcome to Demon School! Iruma-kun Season 4 has finished airing — the final episode aired September 26, 2026.

Is there a season 2 of Welcome to Demon School! Iruma-kun Season 4?

No sequel is listed for Welcome to Demon School! Iruma-kun Season 4 as of October 2026. You can continue the story in the original manga.

What should I watch before Welcome to Demon School! Iruma-kun Season 4?

Watch Welcome to Demon School! Iruma-kun Season 3 first — Welcome to Demon School! Iruma-kun Season 4 is a direct sequel.

Is Welcome to Demon School! Iruma-kun Season 4 based on a manga?

Yes. Welcome to Demon School! Iruma-kun Season 4 adapts the manga by Osamu Nishi.

Who animated Welcome to Demon School! Iruma-kun Season 4?

Welcome to Demon School! Iruma-kun Season 4 was animated by Bandai Namco Pictures and directed by Makoto Moriwaki.

Who sings the opening of Welcome to Demon School! Iruma-kun Season 4?

The opening, "Ichi Ni San", is performed by Penthouse.

Where can I watch Welcome to Demon School! Iruma-kun Season 4?

Welcome to Demon School! Iruma-kun Season 4 is listed on YouTube, Crunchyroll, Bilibili TV. Availability varies by region — check the streaming links on this page.