
Makai Ishi Mephisto is a Japanese novel of 407,287 characters, with 16,331 unique words and 2,475 different kanji. Its difficulty rating on Jiten is hard, 3.9 out of 5. The full vocabulary list ranks all 16,331 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.