
海洋生物の生態系を守る魚類保護官が、魚の大量死の謎に迫る海洋ミステリ
Umi yo, Yasuraka ni is a Japanese novel of 142,883 characters, with 6,938 unique words and 1,496 different kanji. Its difficulty rating on Jiten is average, 2.5 out of 5. The full vocabulary list ranks all 6,938 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.