Silga Kingdom

Silga Kingdom seems to be a neighboring small kingdom, of Ougoch Duchy of Shiga Kingdom, beyond its mountain range to the east. Bornean forest (home of elves and other fairykins) is over the mountain range to the southeast.

Info
Silga Kingdom is a largish country that's twice as vast compared to all other eastern countries we've passed through so far. Compared to Shiga Kingdom, I guess it's around 50% of Seryuu Earldom or about 10% of Muno Earldom?

According to the Tourism Ministry document, most of the territory is composed of wetlands, fishing industry such as fish, kelp, frogs and water plants raising in the wetlands are mode predominant than agriculture. Compared to other countries, it seems there are a lot of people who are born gifted with water magic and earth magic hereditary.

Trivia

 * There are Wyverns that roam the mountain range between Shiga kingdom and Silga kingdom. It is unofficially stated that you can exchange their eggs from their nests for gold coins, weight-for-weight, if you bring them to Shiga kingdom's royal capital, or the Silga kingdom. If the egg's weight is 500 grams, then it'll be around 150 gold coins. The eggs are then nurtured into Wyvern steed for the dragoons.