
Renton, son of scientists, and Eureka, a girl who can't live under the sun, are raised together when very young and become very attached to each other. One day, Eureka is taken away. Powerless at the time, Renton vows to rescue her. He enters the military and is soon is assigned to the Independent Youths Unit 303 of the First Mobile Forces thanks to his exceptional performance alongside his Nirvash, a bio-mechanical armor/control system. Unknown to Renton, lies a plot to extinguish the alien invasion that is currently happening involving not only him, but Eureka too. (Source: Anime News Network)
Koukyoushihen Eureka Seven: Pocket ga Niji de Ippai is a Japanese anime of 24,753 characters, with 2,061 unique words and 822 different kanji. Its difficulty rating on Jiten is hard, 3.1 out of 5. The full vocabulary list ranks all 2,061 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.