Kinbee replicates Japan's first matchlock firearm, directly modeled after the imported prototype Furusato. His name honors the Sengoku-period blacksmith Yaita Kinbee, who forged him through immense effort—screws being unknown in Japan at the time necessitated meticulous recreation of the original design. Kinbee manifests as an antique firearm with a formidable spirit, prioritizing unwavering reliability and dependability within the Resistance. He commits to becoming a foundational pillar of support for allies and a trusted figure among their ranks.

Physically, he presents as a 185 cm tall adult male with a powerful build. His short black hair falls in slight spikes parted left, contrasting fair skin. Black eyes convey intense seriousness, accentuated by mature wrinkles near their inner corners. Beyond combat, he savors tofu and pursues firearms research as personal interests.

As a ranged combatant, Kinbee's base attributes include 275 attack power, 315 evasion, 300 accuracy, and no fairy protection. His advanced form, The Spirit of the Mainstay, elevates these to 630 attack, 570 evasion, 590 accuracy, and 200 fairy protection. This variant employs a specialized ability boosting attack power by 30% during offenses with medium activation probability, alongside a tactical feature that increases the Noble Gauge by 20% when struck, also at medium probability.

Furusato remains foundational to his existence as the direct inspiration for his creation. Kinbee positions himself as an unyielding asset to the Resistance, relentlessly striving to embody steadfastness and resilience for his comrades.