Rie was the first female to be part of the Sky Force Team, and was supposed to become White Swan. She was 22 years old and the second female partner of Ryu Tendo.
The first and true love interest of Ryu, they were chosen by commander Aya Odagiri to be exposed to the Birdonic Waves. After Ryu was fully exposed to the Birdonic waves, however, Dimensional War Party Byrum appeared and tried to destroy the Sky Force's Earth Ship. Some parts of the ship were damaged badly, and Rie got stuck in a hole. Despite Ryu trying to save her, she fell out of the ship and was kidnapped by Back Dimensional Count Radiguet.
Radiguet brainwashed Rie in order to remove her memories, and made her an official of Byrum. She created the Bio Dimensional Bug, a bug that becomes a Bio Dimensional Monster when put on an object, and also had her own weapon called Necrod, which could be used as a whip, a gun or a sword. Despite being brainwashed, she still loved to play the piano and often played it for Grey. Eventually, after being wounded by Majin Ramon and Gorg, she reverted back into her former self, Rie, in front of Ryu, reuniting the couple.