
Asahi, a boy who likes stories with bad endings, meets Tsukino, a beautiful girl, at the movie theater. She loves bad endings just like he does, and the two hit it off immediately. Reluctantly, they eventually said goodbye and went their separate ways… only to find themselves both ending up at Asahi’s house, and Tsukino claims she lives here, too. It wasn't like that this morning, and Tsukino seemed completely unaware of Asahi's situation!? After investigating, Asahi was forced to conclude that Tsukino is actually the same person as himself in a parallel world — and she had somehow wandered into this world. Asahi agrees to help Tsukino return to her original world, but he can’t help but be drawn to a girl who’s exactly his type — and Tsukino seems feels the same way… A romantic comedy woven between two people who are just a little too much alike! (Source: Shueisha, translated)
Heikou Sekai no Jibun ga Konomi no Bishoujo de Kuse mo Onajidattanode Koishite Shimatta is a Japanese novel of 111,675 characters, with 5,777 unique words and 1,517 different kanji. Its difficulty rating on Jiten is average, 2.6 out of 5. The full vocabulary list ranks all 5,777 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.