
The story of Hantsuki focuses on the budding relationship between the seventeen years old Yūichi Ezaki and Rika Akiba. Both are hospitalized in Yūichi's home town for their respective conditions. Yūichi has hepatitis A, while Rika has problems with a weak heart valve. These teens would then fall in love while they spend time with one another. The story is based in Ise, Mie prefecture as implied by the "Welcome to Ise" sign shown after the opening sequence in the first episode of the anime series.
Hanbun no Tsuki ga Noboru Sora is a Japanese novel of 704,644 characters, with 16,572 unique words and 2,285 different kanji. Its difficulty rating on Jiten is average, 2.7 out of 5. The full vocabulary list ranks all 16,572 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.