
Oretachi wa Isekai ni Ittara Mazu Massaki ni Butsuri Housoku wo Kakunin suru is a Japanese novel of 248,751 characters, with 10,507 unique words and 1,864 different kanji. Its difficulty rating on Jiten is hard, 3.2 out of 5. The full vocabulary list ranks all 10,507 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.