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Mairimashita! Iruma-kun 4th Season cover

Is Mairimashita! Iruma-kun 4th Season good to watch with a friend?

Easy to drop in. Mairimashita! Iruma-kun 4th Season (Welcome to Demon School! Iruma-kun 4th Season) is a TV series from Spring 2026 by Bandai Namco Pictures Inc., Bn Pictures: 24 episodes, about 10 hours in total, still airing, 8.05/10 across the listing sites.

musicmanga adaptationcomedydemonsfantasyfound familyisekaimagic

Watching it together: easy to drop in. Slice-of-life: you can start tonight without a plan, and a missed episode does not ruin it. about 10 hours for the run, 12 evenings at two a night. Rule: episodic, slice-of-life, or comedy/action ≤ 26 episodes → easy to drop in.

This verdict comes from rules over the title's format, length and tags, not from a review — the rule that fired is named above.

The facts

Type
TV series
Episodes
24
Episode length
25 min
Total time
about 10 hours — a weekend
First aired
Spring 2026
Status
Still airing
Studio
Bandai Namco Pictures Inc., Bn Pictures
Score
8.05/10 across the listing sites
Tags
music, manga adaptation, comedy, demons, fantasy, found family, isekai, magic, mythology, school, shounen, slice of life, supernatural

Data from anime-offline-database (ODbL) as of 2026-07-04; the score is the median of the scores the anime listing sites give it, on a 1–10 scale. Also listed as: Welcome to Demon School! Iruma-kun Season 4; Welcome to Demon School! Iruma-kun: Season 4; Welcome to Demon School, Iruma-kun 4.

Do you and a friend both want to watch Mairimashita! Iruma-kun 4th Season?

Queue Up reads two public AniList lists and shows every anime you both have on Planning — with Mairimashita! Iruma-kun 4th Season flagged if it is one of them — then picks tonight's with a weighted roll or a bracket.

Do you and a friend both want to watch Mairimashita! Iruma-kun 4th Season?Free, no login — reads public AniList lists.

Or open it on AniList or MyAnimeList.

Related anime

Mairimashita! Iruma-kun 3rd Season
TV series · 21 ep · 2022 · 7.95/10

More like this: music · manga adaptation · comedy · demons · fantasy · found family · isekai · magic · mythology · school · shounen · slice of life · supernatural.

Quick answers

How long does it take to watch all of Mairimashita! Iruma-kun 4th Season?
About 10 hours for all 24 episodes at 25 min each — a weekend; at two episodes a night that is 12 evenings.
How many episodes does Mairimashita! Iruma-kun 4th Season have?
24 episodes of 25 min.
Is Mairimashita! Iruma-kun 4th Season finished?
No — Mairimashita! Iruma-kun 4th Season is still airing, so the two of you would be watching it weekly as episodes come out.
Is Mairimashita! Iruma-kun 4th Season good for a group?
Yes. Mairimashita! Iruma-kun 4th Season is tagged comedy, the tags that survive a room full of people talking over the screen.
Where is Mairimashita! Iruma-kun 4th Season listed?
Mairimashita! Iruma-kun 4th Season is on AniList (id 184492) and MyAnimeList (id 60310); Queue Up keys it by its AniList id and shows it when it is on either of your lists.

Queue Up is a free tool: enter two AniList usernames and it ranks the anime you both want to watch, rolls one for tonight, runs a bracket to settle it and finds new anime that fit both of you. List data from AniList; title data: anime-offline-database (ODbL), dataset of 2026-07-04; page updated 2026-07-04. Not affiliated with AniList or MyAnimeList. Queue Up is a Somebody Decide program. How it works · Legal & privacy · All lists