
Iedechu no Imouto desu ga, Baka na Aniki ni Hogo saremashita. is a Japanese novel of 114,188 characters, with 7,178 unique words and 1,628 different kanji. Its difficulty rating on Jiten is hard, 3.0 out of 5. The full vocabulary list ranks all 7,178 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.