This is the character I'd like to play in this AP, a human cleric of Iomedae. I'll provide a more fully developed backstory later, but for now I'll answer your questions:
1. Who do you care most about in Trunau and why? What ties do you have to Trunau?
Lumina cares most about Tyari Varvatos matron of the Sanctuary of Iomedae.
When Lumina's family was killed, she was rescued by Iomedaean paladins and taken to the Sancta Iomedaea in Vigil. The orphan felt a strong connection to the Inheritor and her priests and studied as an initiate. While an initiate at the Sancta, Lumina first met Tyari and instantly looked to the older student as a combination big sister, exemplar, and hero. When Tyari left Vigil to lead the Sanctuary in Trunau, Lumina followed.
Since arriving in Trunau, Lumina has felt a spirit in the hardy mountain folk similar to that of the family she lost as a child. She feels that Iomedae has called her to this village to protect it as she was shielded by the Lady's followers when she needed protection.
2. Why, with your amazing attributes (be it Strength, Dex, Int, Wis, or Cha), do you choose to remain living/working in orc lands, risking death every day, when you could be living in Katapesh, Korvosa, or any other city or land?
While the other priests and paladins of the Sanctuary claim allegiance to Lastwall, Lumina's true allegiances are to Tyari Varvatos and the people of Trunau.