
――異世界よ、これが合衆国海兵隊だ。
Tekketsu no Kaihei Reijou is a Japanese novel of 337,000 characters, with 13,289 unique words and 2,228 different kanji. Its difficulty rating on Jiten is hard, 3.6 out of 5. The full vocabulary list ranks all 13,289 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.