
Mamoru Kagemori is a dull high school student who's neither handsome, athletic, nor intelligent. But things aren't always as they appear. He's actually the eldest son of a 400-year-old ninja clan that specializes in protecting their neighbors, the Konnyakus. And the object of Mamoru's protection is none other than their only daughter, Yuna Konnyaku, a natural-born troublemaker! (Source: DrMaster)
Kage kara Mamoru! is a Japanese novel of 1,002,293 characters, with 20,505 unique words and 2,191 different kanji. Its difficulty rating on Jiten is average, 2.7 out of 5. The full vocabulary list ranks all 20,505 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.