Grizzly-san operates Bar the Grizzly, a bar serving carnivorous patrons like Wolf, Tiger, and Lion. The establishment features a pool table and an atmosphere hinting at roughness, though Grizzly and his customers are generally amiable despite fierce appearances.
He wears a fringed black leather vest, a silver cross necklace, motorcyclist goggles, a thick belt with a silver bull buckle, and black leather boots. His imposing stature and carnivorous nature often intimidate others, contributing to a seemingly wild persona.
Beneath this gruff exterior, Grizzly is soft-hearted and helpful. He frequently assists Polar Bear with manual labor despite vocal protests, showcasing their deep bond. His short temper manifests in loud outbursts, often exaggerated and not genuinely hostile.
Grizzly and Polar Bear became friends as cubs when Polar Bear approached without fear. Grizzly, struggling to make friends due to his intimidating appearance, bonded with Polar Bear over their shared size and resilience. Flashbacks show Polar Bear often involved Grizzly in childhood mischief.
During adolescence, Grizzly developed a crush on Tsukiko. Too shy to interact, he enlisted Polar Bear's help. When Tsukiko lost her school badge, Grizzly searched tirelessly in the snow to find it, returning it anonymously to avoid frightening her.
Grizzly hibernates annually during winter but is frequently awakened by Polar Bear for trivial matters or favors, creating a source of comedic friction.
His mother affectionately calls him "Little Grizz" or "Guri-chan," nicknames he finds deeply embarrassing when used publicly. He maintains a loving yet occasionally strained relationship with her, often reacting sharply to motherly displays but later regretting it.
He shares a mentor-like dynamic with Panda, who sought to become "wilder." Grizzly indulges Panda's adventure requests despite initial reluctance, reflecting a protective, older-brother attitude.
His friendship with Penguin centers on their shared role as straight men countering Polar Bear and Panda's antics. Their camaraderie shows in collaborative efforts, like attempting to curb Polar Bear's punning habit.
Grizzly is skilled in salmon hunting and smelt fishing. His favorite foods include salmon stew and seasonal berries.
His hobbies include riding his "Haree Pavdoson" motorcycle, baseball, and driving his S.U.V. for trips with Polar Bear. He once traveled to America with biker friends.
He participates in communal activities, like the baseball game between Bar the Grizzly and Polar Bear's Café, demonstrating his integration into the friend group's social fabric despite an occasionally aloof demeanor.