
Kinugawa Kenichi, an ordinary high school boy, suddenly received a confession of love from his classmate Ooumi Chiyako. He never thought of himself as a popular guy, but Kenichi now felt like he was on the way to an ordinary high school romance. However, after rescuing a stranger named Aya by the roadside, Kenichi found himself living an extraordinary new life in a mysterious apartment... This is a sweet, funny, and sad story of Kenichi's quest for love. (Source: Bookwalker, translated)
Room No. 1301 is a Japanese novel of 1,121,393 characters, with 13,366 unique words and 1,863 different kanji. Its difficulty rating on Jiten is average, 2.6 out of 5. The full vocabulary list ranks all 13,366 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.