Reona commands the Harukaze Squadron from Harukaze Airbase in a fractured post-apocalyptic world dominated by scattered settlements and essential air transport. As captain, she shoulders the critical duties of safeguarding their territory and escorting vital cargo ships through hazardous skies thick with threats from air pirates and rival factions.

Her leadership exudes battle-tested composure and deep experience, forming the bedrock her team relies on during demanding missions of aerial combat, strategic execution, and logistical hurdles. Reona adeptly manages her diverse squadron: harnessing Yufi's energetic mechanical prowess, Kikka's disciplined gunnery, and Emma's resourceful navigation. She prioritizes fostering strong camaraderie and teamwork to overcome both external perils and internal squadron dynamics.

Operations led by Reona involve episodic missions, from cargo escort runs to fierce dogfights against recurring enemies. These engagements intensify in scale and complexity, especially against a rival air pirate group commanded by a ruthless leader, constantly pushing the squadron to refine tactics and fortify their resolve. The narrative interweaves these action sequences with quieter moments exploring interpersonal bonds and personal growth, ultimately cementing the Harukaze Squadron's reputation as a formidable defensive force within their aviation-dependent existence.