Aboard the Zanbani Postal Airship, Akushiba serves as a crew member, sharing quarters with Akiyuki Takehara during the latter’s tenure on the vessel. Renowned for his blistering speed and stamina, he proudly declares himself the fastest individual alive—a title validated when he sprinted after a mail truck to secure the delivery of Akiyuki’s letter. His chest-length brown hair, gray eyes, and casual attire of shirts and shorts underscore his laid-back persona.

Radiating playful energy, he often teases crewmates with lighthearted humor. Beyond his duties, he curates a personal stash of pin-up magazines and risqué photography. Beneath his carefree facade lies steadfast loyalty to the Zanbani crew, evident in his diligent participation in mail deliveries and operational support during voyages.

Akushiba nurses a quiet, unrequited affection for Nakiami, who remains oblivious to his feelings. This tension occasionally drives him to impulsive acts, such as grappling her to halt her return to Tessik Village mid-attack, though she dismisses his efforts. His bond with Akiyuki thrives on camaraderie, exemplified by his assistance in delivering letters to Haru—a gesture highlighting his brash yet supportive nature.

Details of his origins, family ties, and precise role within the Zanbani’s hierarchy remain undocumented in existing records.