
カレンダーのない閉鎖空間で目覚めた三人の少年少女たち。 与えられたのはかつて時間航行を実現していた人類についてのアーカイブデータと、400日後に始まる『任務』に備えたカリキュラムだった。 人類が生存する未来を探し出すことはできるのか。
Boukoku no Sheol is a Japanese novel of 622,689 characters, with 17,649 unique words and 2,298 different kanji. Its difficulty rating on Jiten is hard, 3.6 out of 5. The full vocabulary list ranks all 17,649 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.