# Learn Japanese with Welcome to Demon School! Iruma-kun

> How hard its Japanese is, where to watch it, and what to watch before and after.

[Anime by Japanese level](https://ikkimi.app/anime-by-japanese-level/) › [N4 to N3](https://ikkimi.app/anime-by-japanese-level/#n4-to-n3)

**The short answer:** Ikkimi rates **Welcome to Demon School! Iruma-kun** N4 to N3 for learning Japanese: made for a young audience, clear voices. **Good for a beginner? Yes, as an early show.** It is a step up from the very easiest shows, and a good second or third show.

Ikkimi lists Welcome to Demon School! Iruma-kun on Crunchyroll. What each service carries varies by country. On Crunchyroll, Ikkimi finds a Japanese subtitle file for the episode in Jimaku’s catalogue and lines it up for you.

The Ikkimi web app and Chrome extension come on one plan. The iPhone app is coming soon.

## How hard is the Japanese in Iruma-kun?

Ikkimi rates Iruma-kun at **N4 to N3** (everyday talk). What sets its level: made for a young audience, clear voices. Of the 192 anime Ikkimi rates by hand, 16 are easier and 148 are harder.

Levels follow the Japanese Language Proficiency Test, from N5 (easiest) to N1 (hardest). They are Ikkimi’s estimate of how hard a show’s Japanese is to follow, from how fast people talk, how many unusual words there are and how clear the voices are. They are not official JLPT ratings.

| Fact | Welcome to Demon School! Iruma-kun |
| --- | --- |
| Ikkimi’s level | N4 to N3 (everyday talk) |
| Why | made for a young audience, clear voices |
| Japanese title | 魔入りました！入間くん |
| Format | TV series |
| Episodes | 23, about 25 minutes each |
| First aired | 2019 |
| Genres | Comedy, Fantasy |
| Where to watch | [Crunchyroll](https://www.crunchyroll.com/search?q=Welcome%20to%20Demon%20School!%20Iruma-kun) |

Format, episodes, year and genres are from [AniList’s entry](https://anilist.co/anime/107693), which may cover only the first season.

## How to learn Japanese with Iruma-kun

Ikkimi lists Iruma-kun on Crunchyroll. What each service carries varies by country. Ikkimi does not stream anything: you watch on your own account, in Chrome on a computer, and Ikkimi adds a Japanese line you can click on top of the player.

### On Crunchyroll

Crunchyroll rarely has Japanese subtitles. On a Crunchyroll episode, Ikkimi looks for a matching Japanese subtitle file in Jimaku’s public catalogue, loads it and lines it up with the episode by itself. If Jimaku has no file for an episode, you can search by hand in the Ikkimi popup or load a subtitle file from your computer.

1. Add Ikkimi to Chrome: Get the extension from the [Chrome Web Store](https://chromewebstore.google.com/detail/ikkimi-%E2%80%94-learn-japanese/kknpmodmojiodjhbgapdgpabdehpnfcb) and sign in.
2. Play an episode: Open Iruma-kun on Crunchyroll. The Japanese line appears on top of the video.
3. Click the words you keep hearing: The video pauses and the word opens: kana, romaji, meaning, JLPT level and a recording by a native speaker where one exists (never a computer voice; otherwise the line from the show plays again). Keep three to five words an episode, the ones that come up again.
4. Review them later: Kept words come back as flashcards on the Ikkimi website, with the scene and the line they came from, just before you would forget them.

## Easier and harder shows

Shows within a level of Iruma-kun, with the most genres in common first.

### Easier

| Show | Level | Why | Where |
| --- | --- | --- | --- |
| **[Pokémon](https://ikkimi.app/anime/pokemon/)** ポケットモンスター | N4 | made for children, simple adventure talk | Netflix |
| **[Kemono Friends](https://ikkimi.app/anime/kemono-friends/)** けものフレンズ | N4 | simple cheerful speech, animal facts | Crunchyroll |
| **[K-On!](https://ikkimi.app/anime/k-on/)** けいおん! | N4 | school club chatter, everyday words | Netflix |

### Also N4 to N3

| Show | Level | Why | Where |
| --- | --- | --- | --- |
| **[Miss Kobayashi’s Dragon Maid](https://ikkimi.app/anime/miss-kobayashis-dragon-maid/)** 小林さんちのメイドラゴン | N4 to N3 | home and office talk, one very polite speaker | Crunchyroll |
| **[Dragon Ball](https://ikkimi.app/anime/dragon-ball/)** ドラゴンボール | N4 to N3 | simple adventure talk, shouting | Crunchyroll |
| **[Cardcaptor Sakura](https://ikkimi.app/anime/cardcaptor-sakura/)** カードキャプターさくら | N4 to N3 | a polite ten-year-old lead, clear voices | Crunchyroll, Netflix |

### Harder

| Show | Level | Why | Where |
| --- | --- | --- | --- |
| **[ONE PIECE](https://ikkimi.app/anime/one-piece/)** | N3 | loud and clear, pirate words that repeat | Crunchyroll, Netflix |
| **[Naruto](https://ikkimi.app/anime/naruto/)** NARUTO -ナルト- | N3 | clear voices, ninja words that repeat | Crunchyroll, Netflix |
| **[Black Clover](https://ikkimi.app/anime/black-clover/)** ブラッククローバー | N3 | magic words that repeat, a lot of shouting | Crunchyroll, Netflix |

See [every N4 to N3 anime](https://ikkimi.app/anime-by-japanese-level/#n4-to-n3) or all 192 [anime by Japanese level](https://ikkimi.app/anime-by-japanese-level/), and read [how to learn Japanese by watching anime](https://ikkimi.app/learn-japanese-with-anime/) from zero.

## Questions

### Is Iruma-kun good for learning Japanese?

Yes, as an early show. Ikkimi rates it N4 to N3 (everyday talk). What sets its level: made for a young audience, clear voices. It is a step up from the very easiest shows, and a good second or third show.

### What Japanese level is Iruma-kun?

N4 to N3, on Ikkimi’s scale from N5 (easiest) to N1 (hardest). Of the 192 anime Ikkimi rates by hand, 16 are easier and 148 are harder. The level is Ikkimi’s estimate, not an official JLPT rating.

### Where can I watch Iruma-kun with Japanese subtitles?

Ikkimi lists Iruma-kun on Crunchyroll. What each service carries varies by country. Crunchyroll rarely has Japanese subtitles, so Ikkimi looks for a matching file in Jimaku’s catalogue and lines it up with the episode.

### How many episodes does Iruma-kun have?

AniList’s entry lists 23 episodes of about 25 minutes, first aired in 2019. Later seasons may be listed separately.

### What should I watch before Iruma-kun?

Shows a little easier than Iruma-kun, with genres in common: Pokémon (N4), Kemono Friends (N4) and K-On! (N4).

Sources: show details from [AniList](https://anilist.co); meanings from JMdict (EDRDG, CC BY-SA 4.0); readings and word splits from kuromoji.js with IPADIC; JLPT word levels from Jonathan Waller’s unofficial lists. See [Credits](https://ikkimi.app/credits/). Spotted a mistake? Tell us at [hello@ikkimi.app](mailto:hello@ikkimi.app).

Tonight’s episode is a lesson.

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Source: https://ikkimi.app/anime/welcome-to-demon-school-iruma-kun/ · Updated 2026-10-30 · Contact: hello@ikkimi.app · More: https://ikkimi.app/llms.txt