
Jirokichi plays around during the day, but at night becomes a completely different person. His nickname is Nezumi-Kozo (“Rat Boy"). Jirokichi steals gold coins from corrupt samurai families and hands it over to the poor. He works with his younger sister Kosode.
Nezumi, Edo wo Hashiru is a Japanese drama of 105,482 characters, with 4,671 unique words and 1,243 different kanji. Its difficulty rating on Jiten is hard, 3.7 out of 5. The full vocabulary list ranks all 4,671 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.