
Seikai no Senki is a Japanese novel of 600,295 characters, with 16,697 unique words and 2,416 different kanji. Its difficulty rating on Jiten is hard, 4.0 out of 5. The full vocabulary list ranks all 16,697 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.