Ruby Azumi

 (ルビー・安曇, Rubī Azumi) is one of the main characters in Sora to Umi no Aida. She is a Japanese-American girl from California who joins the group after saving them when a training session went wrong.

Etymology

 * Ruby's surname Azumi means "peace, quiet" (安) (a) and "cloudy/cloudy weather/cloudiness/cloud up, shadow" (曇) (sumi/zumi).

Quotes
"1"

- 2

Trivia

 * Ruby calls herself a "spy" and came to Japan in order to find out about Japan's space fishing technology.