Real Name: Liliya Horner Aircraft: F-14D (Replica) Race: Human Occupation: Mercenary TAC Name: Cat An F-14D pilot who dearly loves variable-sweep wing aircraft. She hates losing and often tries to initiate dogfights even though her plane isn't ideally suited for them. On the ground, she has a bright, energetic, and wild personality.

Real Name: Suira Alice Elberry Aircraft: F-14D (Replica) Race: Human Occupation: Mercenary TAC Name: Berry The RIO (Radar Intercept Officer) of the F-14D. Lilia's childhood friend who was dragged into this life by her. She is always calm and has essentially become Lilia's guardian. She's a poor soul who gets pushed around by Lilia both in the air and on the ground, but secretly she finds it fun and doesn't entirely mind. She is constantly worried about the finances, struggling to keep flight hours, ammunition, and fuel within the budget to somehow turn a profit.

Real Name: Trevor Hoyle Aircraft: F-16 (Replica) Race: Human Occupation: Mercenary TAC Name: Ale An F-16 pilot and Lead (No. 1) of the mercenary squadron "Quick Fighters." He is called Ale because he's usually found at a tavern drinking it. He was the instructor who taught Lilia and Sui combat maneuvers. He has a deep, gravelly voice and a boisterous, "American-style" personality. He is quite skilled, with 14 confirmed kills to date.

Real Name: Elizabeth Hoyle Aircraft: SAAB-39 (Original) Race: Human Occupation: Royal Air Knights, Queens Squadron Member TAC Name: Beth Trevor's younger sister. An ace pilot who loves close-quarters dogfighting and possesses skills superior to her brother. While she is cool and composed in the cockpit, on the ground she becomes a girl full of curiosity about everything. Her friendly nature makes her mid-air personality shift surprising even to her fellow knights. She is highly valued within the Air Knights as the young "Ace Queen."

The air force maintained by the Kingdom of Loise. Most of their equipment consists of Originals, operating American and Swedish-made fighters. They maintain airspace surveillance with a three-plane AWACS system: "Golden Eye," "Sky Kingdom," and "White Rock." The Air Knights consist of five squadrons: "Queens," "Princess," "Kingdom," "Orions," and "Golem."

Bandits who raid transport planes and airships. They are composed of failed mercenaries, washouts from the Royal Air Knights, and others who couldn't make a living, banding together to survive. Occasionally, highly skilled pilots among them have bounties placed on their heads. They primarily attack using Replica fighters, but some rarely manage to acquire and operate unrecovered Original aircraft. They use a wide variety of planes, regardless of Western or Eastern origin.

Those who plot world conquest. Initially, they tried to rule the world through overwhelming magical power, but they were defeated by the Human Alliance, which became powerful after aircraft technology from another world fell into human hands. Since then, they have been quietly recovering crashed fighters to analyze and replicate the technology. Recently, they have become able to produce Replicas of 3rd-generation fighters, but they still cannot replicate missile or radar systems.

Airports and airfields with runway lengths ranging from 2,000m to 4,000m are scattered across the land. "Royal Capital Edwards Airport," located near the capital, has eight runways of the 3,000–4,000m class and is used by civilians, mercenaries, and adventurers alike. Takeoff and landing instructions are handled by the Control Tower, while movement from the runway to the parking spot is managed by Ground Control. Organizations for airport maintenance are run by the state or the Guild.

An organization that manages mercenaries and adventurers. It handles the issuance of ID cards, sharing of missions and events, and processing of requests. It also oversees the buying and selling of fuel, aircraft, equipment, and raw materials.

Individuals whose status is guaranteed by the Guild. They take on requests through the Guild. Mercenaries escort transport planes and civilian airliners, intercept air pirates and demons, and defend airports. Sometimes they fly in conflicts between nations. Adventurers travel the skies or transport goods via cargo planes. Some even journey in fighter jets seeking unknown skies and lands... They fly a wide variety of aircraft, regardless of Western or Eastern origin.