The Sailor Scouts are a number of super heroine who protect the earth from the dark forces. Each of the Sailor Scouts are named after the different planets and each are associated with a particular element. The Sailor Scouts are divided into two main groups, the Inner Sailor Scouts and the Outer Sailor Scouts. Each of the Sailor scouts were princess of their own home planet and served the Moon Princess Princess Serenity.

Rei Hino (Raye), is one of the original five sailor senshi and, in the anime, the 2nd in command of the Princess's four guardians. She has two pet crows named Phobos and Deimos who, in the manga, are her guardians. Despite being Shinto, she attends a Catholic high school. She is portrayed as being very popular and well liked in school, despite her temper. Her name means 'Spirit of Fire', and her attacks are mostly based on fire. Rei's birthday is on April 17. A fiery and headstrong Aries ruled by the planet Mars.