Is Mairimashita! Iruma-kun good to watch with a friend?
Easy to drop in. Mairimashita! Iruma-kun (Welcome to Demon School) is a TV series from Fall 2019 by Bandai Namco Pictures Inc., Bn Pictures: 23 episodes, about 8.8 hours in total, finished, 7.8/10 across the listing sites.
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 8.8 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
- 23
- Episode length
- 23 min
- Total time
- about 8.8 hours — a weekend
- First aired
- Fall 2019
- Status
- Finished
- Studio
- Bandai Namco Pictures Inc., Bn Pictures
- Score
- 7.8/10 across the listing sites
- Tags
- action, manga adaptation, comedy, coming of age, cooking, demons, drama, fantasy, found family, friendship, idol, isekai, love triangle, magic, mythology, school, shounen, slice of life, superpowers, supernatural, survival, swordplay, tragedy, violence
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; Welcome to Demon School! Iruma-kun; Welcome to Demon School, Iruma-kun!; Welcome to Demon-School! Iruma-kun.
Do you and a friend both want to watch Mairimashita! Iruma-kun?
Queue Up reads two public AniList lists and shows every anime you both have on Planning — with Mairimashita! Iruma-kun flagged if it is one of them — then picks tonight's with a weighted roll or a bracket.
Or open it on AniList or MyAnimeList.
Related anime
More like this: action · manga adaptation · comedy · coming of age · cooking · demons · drama · fantasy · found family · friendship · idol · isekai · love triangle · magic · mythology · school · shounen · slice of life · superpowers · supernatural · survival · swordplay · tragedy.
Quick answers
- How long does it take to watch all of Mairimashita! Iruma-kun?
- About 8.8 hours for all 23 episodes at 23 min each — a weekend; at two episodes a night that is 12 evenings.
- How many episodes does Mairimashita! Iruma-kun have?
- 23 episodes of 23 min.
- Is Mairimashita! Iruma-kun finished?
- Yes, Mairimashita! Iruma-kun is finished (23 episodes), so you can watch the whole thing at your own pace.
- Is Mairimashita! Iruma-kun good for a group?
- Yes. Mairimashita! Iruma-kun is tagged action, comedy, the tags that survive a room full of people talking over the screen.
- Where is Mairimashita! Iruma-kun listed?
- Mairimashita! Iruma-kun is on AniList (id 107693) and MyAnimeList (id 39196); 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