Stella, a young wolf-human hybrid from France, serves as a police dog within the Japanese police force. With light brown hair, green eyes, and a slight frame, her age fluctuates between 8 to 10 years in various records. Her nervous disposition manifests as trembling when encountering unfamiliar settings or individuals, such as Kuniharu Ogino, whom she finds initially daunting. Energetic yet fiercely protective of her beloved sweets, Stella later cultivates a peculiar obsession with elasticity after a mission against Don Valentino’s subordinates sparks a fixation on stretching elastic materials—a quirk shared among hybrids in her world, separate from violent impulses. Her integration into the police unit hinges on patient bonds, notably with Yuzuki Ogata, whose boisterous affection for dogs initially overwhelms her. Through joint missions and casual exchanges, she transitions from wary newcomer to engaged operative, even joining hybrid allies in collective endeavors like the "The Wolf’s House" operation. Trained as a "Secret Doberman," Stella’s role emphasizes covert expertise. Despite her youthful demeanor, she exhibits flashes of tactical maturity, balancing playful antics with sharp situational awareness during assignments. Her evolution from skittish recruit to assured team member underscores her growth, though core quirks—her sugary indulgences and elastic fascination—persist unaltered.