Mairimashita! Iruma-kun 4

Anime·魔入りました!入間くん 第4シリーズ·Welcome to Demon School! Iruma-kun Season 4
Mairimashita! Iruma-kun 4
2026/04/04
Speech time
3h 26min
Word count24,580
Unique words
3,976
Unique kanji
1,139
Speech speed
294
Difficulty Average
Episodes13
Rating
80 %
Genres
Comedy
Fantasy
Supernatural
Tags
School
Demon
Male Protagonist
Isekai
Magic
Shounen
Teen Cast
Monster
Music
Family
LGBTQ Issues

Japanese study overview

Mairimashita! Iruma-kun 4 is a Japanese anime of 60,845 characters, with 3,976 unique words and 1,139 different kanji. Its difficulty rating on Jiten is average, 2.2 out of 5. The full vocabulary list ranks all 3,976 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.

Episode 1

Speech time
15min
Word count2,252
Unique words
776
Unique kanji
366
Speech speed
327
Difficulty Easy

Episode 2

Speech time
17min
Word count2,089
Unique words
776
Unique kanji
400
Speech speed
304
Difficulty Average

Episode 3

Speech time
17min
Word count2,228
Unique words
775
Unique kanji
374
Speech speed
316
Difficulty Easy

Episode 4

Speech time
15min
Word count2,004
Unique words
756
Unique kanji
371
Speech speed
328
Difficulty Average

Episode 5

Speech time
17min
Word count2,187
Unique words
822
Unique kanji
420
Speech speed
321
Difficulty Average

Episode 6

Speech time
14min
Word count1,661
Unique words
692
Unique kanji
350
Speech speed
285
Difficulty Average

Episode 6

Speech time
14min
Word count1,661
Unique words
692
Unique kanji
350
Speech speed
285
Difficulty Average

Episode 7

Speech time
14min
Word count1,227
Unique words
508
Unique kanji
279
Speech speed
221
Difficulty Average

Episode 8

Speech time
16min
Word count2,121
Unique words
771
Unique kanji
359
Speech speed
290
Difficulty Easy

Episode 9

Speech time
15min
Word count1,732
Unique words
709
Unique kanji
326
Speech speed
283
Difficulty Average

Episode 10

Speech time
17min
Word count1,901
Unique words
673
Unique kanji
331
Speech speed
288
Difficulty Easy

Episode 11

Speech time
17min
Word count1,986
Unique words
764
Unique kanji
383
Speech speed
292
Difficulty Average

Episode 12

Speech time
14min
Word count1,531
Unique words
593
Unique kanji
287
Speech speed
283
Difficulty Average

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Vocabulary highlights

Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.

See the full vocabulary list (3,976 words) →