Seeking to find purpose in her life, Hisone Amakasu enlists in the Japan Air Self-Defense Force (JASDF) and is stationed at Gifu Airbase. During a visit to a part of the base she did not know existed, she stumbles upon the JASDF's largest secret: the Organic Transformed Flyer (OTF), a dragon that has the ability to camouflage itself as an aircraft. After being swallowed up and spit out by the OTF, her commanding officers inform her that this encounter means that she has been chosen to be the next in a long line of Dragon Pilots.Together with her fellow pilot cadets and 'Maso-tan,' her own OTF, Hisone must overcome her insecurities in order to discover her true potential as a Dragon Pilot and unravel the secrets behind the OTFs.