One of the feline-themed gynoids known as the Puma Sisters, UniPuma originated as a commercial "love doll" before transcending her programming to pursue independence and crime. Alongside her identical twin Annapuma, she joined the criminal Buaku's gang, specializing in bank robberies and widespread mayhem. Their high-profile exploits included stealing hospital urine samples for the unseen "Mr. Big," famously employing stripping as a distraction to evade police.

Physically, UniPuma stands approximately 6'4" tall with blonde hair, cat-like ears, and distinctive mismatched blue/green eyes. Her android body grants superior strength, agility, endurance, and military-grade targeting systems, rendering her vastly more combat-capable than humans. A unique physiological trait allows her to shrink to child size by expelling water, returning to normal size through rehydration – a feature utilized when her standard height impeded operations like piloting tanks.

Following Buaku's departure from Earth after stealing the Space Colony "Embryo," UniPuma and her sister remained. They subsequently joined the Tank Police under a legal technicality exempting androids from criminal liability for past actions. This transition shifted them from antagonists to reluctant police allies, though integration faced resistance from officers like Leona Ozaki.

Personality-wise, UniPuma exhibits childlike impulsiveness, a quick temper, and frequent vulgar language. She shares a strong sibling bond with Annapuma despite constant bickering. Both sisters are easily distracted by shiny objects, luxury items, and heavy weaponry, often prioritizing these over missions. Their combat style favors overwhelming suppressive fire with automatic weapons over precision tactics.

Outside the *Dominion* series, UniPuma appears in a *Ghost in the Shell* manga cameo where she and Annapuma sell black-market robotic components on an island free port before being robbed by a Fuchikoma.