
Oshiete! Darenidemo Wakaru Isekai Seikatsujutsu is a Japanese novel of 407,755 characters, with 16,084 unique words and 2,346 different kanji. Its difficulty rating on Jiten is hard, 3.3 out of 5. The full vocabulary list ranks all 16,084 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.