For Llaine, I believe the best word to describe her overall plot is Sacrifice. After spilling too much blood for the wrong reasons, she has returned to Eorzea with the singular purpose of bringing Hydaelyn's light to the land and acting as a shield against danger for her friends and allies. She is ready and willing to sacrifice anything for anyone, and will fight to her dying breath for what she believes is right and just.
Alternatively, Divinity could also be used, as she strives for absolute purity in the light of the Crystal.
Alternatively, Divinity could also be used, as she strives for absolute purity in the light of the Crystal.