Syra

Syra was given a chance to Join SAO by her nurse. She is an amputee in the Real world. During a terrible break in, that resulted in fire, She lost both her parents, and her legs. During recovery, it was suggested to join SAO upon it's release, as a way to work through the truma. 

(She doesn't talk about any of this: but she might if she connects well enough with someone)

But of course that caused more truma then the world was ready for. For many months, she remained Idol in the town of Beginnings, contemplating the easy way out. But for whatever reason, she found her motivation to live, to beat the game, and reclaim her life in the real world.