
In the summer of my third year of high school, Matsuri Tokiwa went missing. She was the first girl I ever fell in love with. I turned twenty, still unable to accept the harsh reality, when for some reason time turned back to the spring of two year ago. While savoring the joy of being able to see her like it's only natural, I confessed, went on dates, and did things that I would never have done the first time... But summer is my time limit. Does she have an idea of why she disappeared? I don't want to lose her again. (Source: Kadokawa, translated)
Nishuume no Boku wa Kimi to Koi wo Suru is a Japanese novel of 94,903 characters, with 6,526 unique words and 1,612 different kanji. Its difficulty rating on Jiten is average, 2.4 out of 5. The full vocabulary list ranks all 6,526 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.