Toppy Topuran, a Feral bounty hunter with the cuddly guise of a teddy bear, defies expectations with ruthless efficiency masked by his diminutive frame and plush exterior. His speech peppers each sentence with a playful "kuma," a linguistic signature rooted in his bear identity. Sporting a weathered blue pirate bandana pierced by perked ears, a spiked collar, a tactical eyepatch, and star-studded gloves and boots, he blends whimsy with rugged readiness.

Originally guarding Felis Rex’s sandship Zifnir, Toppy clashes with trespassers Kyrie and Morte, swiftly disarming Kyrie and leveraging the hostage to control Morte. Though initially adversarial, he softens upon Kyrie’s earnest apology for mistaking him as a toy, charmed by the youth’s guileless sincerity.

Intrigued by Kyrie’s quirks, Toppy allies with the World Destruction Committee as a battle-hardened mentor. His combat mastery shines across adaptations, particularly in animated clashes. He commands Muffy, a colossal bear ally summoned for devastating strikes, yet guards a shrouded secret from her. His bond with Kyrie deepens into a steadfast partnership dubbed "heterosexual life-partners," blending camaraderie and mutual respect. The manga amplifies their dynamic through Kyrie’s relentless insistence on treating Toppy as a stuffed companion—culminating in a botched kidnapping attempt that sparks Toppy’s exasperated rebuffs.

Driven by an unyielding self-image as a hero, Toppy pursues valor irrespective of acclaim. While his origins remain veiled, his loyalty as a human-tolerant Feral anchors the group’s mission, prioritizing Kyrie’s safety and collective objectives with unwavering focus. His narrative steadfastly adheres to this core, untouched by expanded lore beyond the central tale.