Kaigen's Island

Kaigen's Island was located in front of the Isawa coastland.

Creation
In 1167 the Master of Earth Isawa Sachi created the island during the Battle of Broken Waves. Yoritomo Kaigen commanded the waves to dash the tainted Dark Wave Fleet upon it, ending the battle and the War of Fire and Thunder.

Yoritomo Kumiko
To honor the deceased Mantis Clan Champion, Yoritomo Kumiko, the new Champion Yoritomo Naizen began to build Kyuden Kumiko and the City of the Broken Waves, that surrounded the castle and occupied the entirety of the island.