
Nagoya always suffers from mysterious dreams. One day he is invited by his classmates on a drinking party to celebrate the last day of semester. They hear piano playing at night school. Depending on actions, the mystery can have four absolutely different and often fantastic reasons.
Zero One is a Japanese visual novel of 300,629 characters, with 7,247 unique words and 1,337 different kanji. Its difficulty rating on Jiten is average, 2.3 out of 5. The full vocabulary list ranks all 7,247 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.