Rei Hino's alter ego from the anime and manga Sailor Moon. One of the Sailor senshi, Naoko Takeuchi created her to standout from the rest of the characters to be especially "Asian." Naoko said that she wanted Rei to be very beautiful and feminine.
In the anime, Rei and the main character Usagi always fight. But in the original manga, Rei has always watched over her. As Sailor Mars, her element is fire.
"Mars prism power! Make-up!!!"