
The anime centers around Kaito, an elementary school boy who is suddenly burdened with 10 billion yen (about US$100 million) in debt one day. The only way he can pay off the debt is to master "Hero-Gi" (downloaded off the net) and win matches in "Hero Battle," a new-generation cyber sport. The tagline of the game "Change your money with justice!" (Source: Anime News Network)
Hero Bank is a Japanese anime of 204,558 characters, with 8,623 unique words and 1,532 different kanji. Its difficulty rating on Jiten is hard, 3.1 out of 5. The full vocabulary list ranks all 8,623 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.