Avion Sea is sea located somewhere in the Special Region and far away from the reach of the Empire. The sea once ruled by the Avion dynasty who controlled a vast kingdom with dozens of islands. After the Avion dynasty declined, the Avion islands were separated into multiple kingdoms, which are: Tinae, Javiá, Ubulla, Manuham, Seiraf, Sarandip, Routerbagga, Shichijima while the remaining islands being controlled by pirates.
The Avion Sea is main focus in Gate: Weigh Anchor.
- The reason why the Empire never attempts to invade Avion Sea is because their Navy force is too primitive and inefficient.