
The story of "love, magic, and battles" revolves around Akuto Sai, a boy who aims to become part of his country's highest order of magicians and contribute to society as one of its clergy. On the day he is admitted into the Constan Magical Academy, his aptitude test predicts the following: "Future Occupation … Devil King." Thus begins his difficult school life in which he is resented by his studious female class head, desired by a girl with mysterious powers, and guarded by a beautiful female android. (Source: Anime News Network)
Ichiban Ushiro no Daimaou is a Japanese novel of 1,021,564 characters, with 19,825 unique words and 2,296 different kanji. Its difficulty rating on Jiten is hard, 3.3 out of 5. The full vocabulary list ranks all 19,825 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.