
Rokka no Yuusha Archive is a Japanese novel of 122,513 characters, with 6,324 unique words and 1,638 different kanji. Its difficulty rating on Jiten is hard, 3.1 out of 5. The full vocabulary list ranks all 6,324 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.