
The setting is a rural city in which a kidnapping and a series of murders are happening simultaneously, where there was also a kidnapping 8 years ago. The victims, the compulsive liar "Mii-kun" (the narrator), and "Maa-chan" (Misono Mayu) reunite and start living together, despite of the fact that the kidnapped children were in Mayu's apartment...
Usotsuki Mii-kun to Kowareta Maa-chan is a Japanese novel of 1,407,077 characters, with 31,353 unique words and 2,682 different kanji. Its difficulty rating on Jiten is hard, 3.3 out of 5. The full vocabulary list ranks all 31,353 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.