
Itsumo Kokoro ni Ken wo is a Japanese novel of 517,208 characters, with 13,926 unique words and 2,242 different kanji. Its difficulty rating on Jiten is hard, 3.5 out of 5. The full vocabulary list ranks all 13,926 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.