
You are Takamura Kyouji, a university undergraduate of archeology (and still in school). By help from Sears Association, you got a temporary teaching intern job at Fuuka Gakuen class 1-3 (Miyu, Natsuki, Mai and Akane's class) teaching History. In reality, you're at Fuuka to research the Hime Legend.
Mai-HiME - Unmei no Keitouju is a Japanese visual novel of 1,049,050 characters, with 19,454 unique words and 2,290 different kanji. Its difficulty rating on Jiten is average, 2.8 out of 5. The full vocabulary list ranks all 19,454 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.