Astrid seeks to bring down the Sisterhood from within, while, on an outlaw colony station deep in space, Hiro val Akira seeks to bring a dangerous ally into the rebellion, and Lito sol Lucius continues to grow into his role as lead revolutionary.

"First Sister has no name and no voice. As a priestess of the Sisterhood, she travels the stars alongside the soldiers of Earth and Mars - the same ones who own the rights to her body and soul. When her former captain abandons her, First Sister's hopes for freedom are dashed when she is forced to stay on her ship with no friends, no power, and a new captain - Saito Ren - whom she knows nothing about. She is commanded to spy on Captain Ren by the Sisterhood,...