
The main character of this game is a detective named Ryuuichi. He and his assistant, Mizuki, were on a way to a sanatorium, a place of remedy for mental illness patients, for investigation as he received a mystery slip asking to save her before next full moon. Upon the arrival of this sanatorium, he realized something strange about this place: everything is too calm. As he begins to investigate, a horrible scheme will survive little by little until the next full moon.
SANATORIUM is a Japanese visual novel of 220,996 characters, with 7,673 unique words and 1,714 different kanji. Its difficulty rating on Jiten is average, 2.6 out of 5. The full vocabulary list ranks all 7,673 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.