
The first installment of the Sekai Series. Two siblings in the process of crossing a forbidden line, Hitsuuchi Samatoki and Hitsuuchi Yorotsuki. Two friends, Mukaezuki Hakohiko and Kotohara Ririsu. A locked-room murder at the school cracks their worlds… (Source: Kodansha, translated)
Kimi to Boku no Kowareta Sekai is a Japanese novel of 174,198 characters, with 7,974 unique words and 1,757 different kanji. Its difficulty rating on Jiten is hard, 3.2 out of 5. The full vocabulary list ranks all 7,974 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.