Ruri no Houseki

Anime·瑠璃の宝石·Ruri Rocks
Ruri no Houseki
2025/07/06
Speech time
3h 44min
Word count25,930
Unique words
3,273
Unique kanji
1,089
Avg. sentence9.0
Speech speed
297
Difficulty ▲▲ Hard
Episodes13
Rating
79 %

Mineral collecting is like a modern-day treasure hunt! Ruri, a high school girl who loves jewelry and accessories, gets into the world of mineral collecting, venturing into mountains, rivers, and caves. The first volume features numerous minerals, including quartz, garnet, pyrite, gold sand, and fluorite. The manga is full of fascinating scenes focusing on specialized tools such as a panning dish, hammer, and topographical maps. An authentic scientific adventure based on the author's solid knowledge of mineralogy! (Source: Harta, translated)

Genres
Adventure
Slice of Life
Tags
Female Cast
Educational
Cute Girls Doing Cute Things
Female Protagonist
Episodic
Seinen
University
Work
Countryside

Japanese study overview

Ruri no Houseki is a Japanese anime of 57,833 characters, with 3,273 unique words and 1,089 different kanji. Its difficulty rating on Jiten is hard, 3.3 out of 5. The full vocabulary list ranks all 3,273 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 count1,803
Unique words
641
Unique kanji
344
Avg. sentence8.3
Speech speed
342
Difficulty Average

Episode 2

Speech time
17min
Word count1,998
Unique words
652
Unique kanji
353
Avg. sentence9.2
Speech speed
293
Difficulty Average

Episode 3

Speech time
18min
Word count2,112
Unique words
669
Unique kanji
370
Avg. sentence8.1
Speech speed
285
Difficulty Average

Episode 4

Speech time
17min
Word count2,084
Unique words
653
Unique kanji
339
Avg. sentence9.8
Speech speed
306
Difficulty Average

Episode 5

Speech time
18min
Word count2,186
Unique words
674
Unique kanji
371
Avg. sentence8.8
Speech speed
303
Difficulty Average

Episode 6

Speech time
17min
Word count1,961
Unique words
635
Unique kanji
366
Avg. sentence10.6
Speech speed
274
Difficulty Average

Episode 7

Speech time
17min
Word count1,997
Unique words
573
Unique kanji
332
Avg. sentence8.4
Speech speed
294
Difficulty Average

Episode 8

Speech time
17min
Word count1,904
Unique words
599
Unique kanji
331
Avg. sentence8.9
Speech speed
276
Difficulty Average

Episode 9

Speech time
17min
Word count1,907
Unique words
653
Unique kanji
356
Avg. sentence8.5
Speech speed
277
Difficulty Average

Episode 10

Speech time
17min
Word count1,779
Unique words
602
Unique kanji
332
Avg. sentence9.1
Speech speed
275
Difficulty Average

Episode 11

Speech time
14min
Word count2,029
Unique words
599
Unique kanji
339
Avg. sentence9.5
Speech speed
356
Difficulty Average

Episode 12

Speech time
17min
Word count1,831
Unique words
601
Unique kanji
302
Avg. sentence8.8
Speech speed
275
Difficulty Average

Episode 13

Speech time
18min
Word count2,339
Unique words
735
Unique kanji
394
Avg. sentence10.2
Speech speed
322
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 (3,273 words) →