
12 girls are imprisoned in a mysterious prison. Fighting their way through this unjust and abnormal conditions, these girls have begun a life and death struggle. A harrowing little girl prison escape.
U12 is a Japanese manga of 99,685 characters, with 5,989 unique words and 1,405 different kanji. Its difficulty rating on Jiten is average, 2.2 out of 5. The full vocabulary list ranks all 5,989 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.