Sierra Parker

Sierra Nichols, real name being Fralisha Luther, is a character in Mias and Ploys of Wrath. In Ploys of Wrath, she hates her legal older brother and considers Jack her older brother instead.

The Heaven and Hell's Timeline
In this timeline, Fral turns against her brother after learning why he adopted her, and seeks to be adopted by Jack. Wanting to have nothing to do with Arsilis, Fral asks Jack to rename her, which then let her as Sierra Charity Nichols.