Air Pirate Group…
The term "Air Pirate Group" originally stemmed from "Pirate Group". After the Demons occupied the land, the term "Pirate Group" vanished, because with the loss of the continent, there was no more ocean, and naturally, there were no more sea pirates either.
However, as Pirate Groups disappeared, Air Pirate Groups emerged, directly replacing sea pirates as the robbers of the skies.
During the Sky Era, all interactions between cities relied on skyships, especially for the Chambers of Commerce. These chambers could only transport goods to various Sky Cities by skyship, which naturally gave rise to Air Pirate Groups.
Additionally, the sky is even more vast and boundless than the sea, making the Air Pirate Groups of today even more rampant and terrifying than the Pirate Groups of old; otherwise, the Mercenary Guild wouldn't have so many escort-oriented missions, the purpose of which is to guard against these Air Pirate Groups.