
Bonus after story that was included with the special edition of volume 6 of Kimi to Tsuzuru Utakata.
Kimi ni Okuru Eien is a Japanese manga of 927 characters, with 208 unique words and 115 different kanji. Its difficulty rating on Jiten is average, 2.3 out of 5. The full vocabulary list ranks all 208 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
This title is too short to reliably find similar media.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.