Pochi evolves from a canine in early iterations to a human-animal hybrid in later adaptations, maintaining a gentle, timid demeanor. He embarks on spontaneous adventures with Tama, showcasing their camaraderie and shared mishaps while guarding a Third Street tofu shop. His uncanny ability to discern hard and soft tofu without touch earned local fame and a newspaper feature. Though naturally fearful, he harbors fleeting urges to project strength, sparking short-lived rebellious streaks that contrast with his core loyalty and kindness toward Tama.

While typically tempering Tama's boldness with his own caution, Pochi sometimes succumbs to impulsivity—like snatching sweets from a stranger's bowl mid-chase. His relationships with Kuro, Gon, and Bull evolve notably: initial terror of Bull (born from a food theft clash) transforms into curiosity, then friendship, as Bull's quirky rituals captivate him. Stray cat Nora demonstrates unexpected care, particularly when a beach photo captures a crab clamping his nose.

The 2020 anthropomorphic reboot preserves his timidity while introducing humorous struggles—like fading into the background. A wolf-persona experiment briefly surfaces, only to cement his true gentle nature. Rooted in the Third Street tofu shop under his owner's care, his core premise remains consistent. Early narratives emphasize routine escapades, while newer iterations tentatively probe subtle growth—facing fears or navigating group hierarchies.