Kiren is a commoner who became a Red Sister and is one of eight with the rank Corpora. She has four subordinate Sisters, including Lawret, and although directly under Lunent Fesi, is often seen with Lead Jaunda and backing up her tasks.
Kiren was born a poor daughter of Low Gate who mostly explored the streets and tunnels around her slum than stay too long in her Mother's hovel. She met Jaunda prior to her recruitment into the Sisterhood and admired the older, tougher street presence, both learning from and coupling with her. When her friend disappeared, Kiren assumed she'd been killed. Dismayed for reasons she hadn't the safety to reflect on, Kiren had no choice but to move on without her.
Kiren learned what had become of Jaunda when, almost a decade later, someone showed up to put a black bag over her head. She became one of the few motivated recruits to come close to impressing The Prime in the last two centuries.
Corpora Kiren is a century and a half younger than Lead Jaunda and is very loyal to her. She is also a regular "fuck-friend," often wrestling, submitting, and sharing Sisters for the entertainment of her Lead; they have similar outlooks, manners, and senses of humor, though Jaunda is far louder. Given the chain of command can be malleable, Kiren has not sought higher and is content so long as she is kept utilized, having the muscle and resources under her to follow through on tasks from her Lead, promptly and to the best of her ability.