Rasa Yupiter, also called Jupiter Rasa, hails from the planet Aquaroid. She possesses blond hair and blue eyes, with no special physical characteristics recorded. Her documented age is 17 years old.

Her background carries ancient Tibetan influences, her name originating from the city of Lhasa. Early concepts linked her to themes of "the birth of civilization," drawing from ancient inspirations like Mesopotamia before evolving toward Tibetan motifs. She is identified as Nam Shurugi's sister.

When Aquaroid faces devastation from an invasion by inorganic entities, Rasa joins the resistance. She operates advanced technology, notably piloting a Floater Motorcycle during high-speed pursuits and combat. A companion creature named Monga or Mongar is frequently by her side. Her technical aptitude, especially with mechanical systems, is noted.

During action sequences, Rasa typically wears a form-fitting red bodysuit paired with a detachable helmet. Her physical design underwent refinement through multiple stages, with initial illustrations appearing on project image boards. These early portrayals show influences from real-life individuals, including the animator Yoshinori Kanada's spouse.

Her story is contained within a single 1984 OVA release, with no documented continuation. Merchandise reflects her action-oriented depiction, such as collectible statues capturing her atop the Floater Motorcycle amidst dynamic effects termed "Kaneda Beams".