Aegian Continent

Aegia (エイジア Eijia), also known as the Aegian Continent (エイジア大陸 Eijia Tairiku), is an isolated shield on the northern part of the world. It is the third largest continent.

Trivia

 * Aegia is a geological shield, which is a pun since Aegis is also, literally, a shield.

Etymology
Aegia is derived from Aegis (Αἰγίς), though it is intentionally pronounced the same way Asia (エイジア Eijia) is pronounced in Japanese.