In the vast Sun-Ocean lies spots of perfect green. The Ankorillian Islands. The “Jewels of the Blue”.
The natives there are strange and wild looking.
Here is the only existing work on how they live, their customs, beliefs and rituals.
Swords form a bond to their wielder. A symbol on the grip that is absorbed through the user's hand and appears on the back of the hand. Maybe only visible to them or others that have the abilities. Could give unique powers depending on when it happened and what they did to get it. It takes a specially made sword that only few can receive and made by a certain race. Then they must do something really heroic to unleash the swords power. Once unleashed it is theirs till they die then the sword goes dormant again till another accomplishes another feat.