Cassie was first seen on Parahumans Online with the username WagTheDog, looking for a way to become Bitch's underling. While more difficult then anticipated, Cassie was ultimately successful in joining, after receiving a message from Charlotte. She would eagerly help at the base,
preparing food during Skitter's tour around the territories.
Bitch told Cassie that "she did not have all the answers" nevertheless Cassie was able to convince Rachel to let her into the 'Gang'.
Cassie takes up residence with Bitch in earth Gimel, performing many indispensable tasks such as cooking, writing letters for Bitch, and taking care of the dogs.
↑ 4.04.1WagTheDog is the enthusiastic blue eyed, dark skinned girl who made the hamburgers. - Comment by Wildbow on Imago 21.6
↑Rachel glanced down. It was Cassie who had spoken. She was warily looking at the people they were passing, drawing closer to Rachel and Bastard. Her dog was a golden retriever, a little out of place alongside Bastard and the more imposing scent dogs they’d brought. Well groomed to the point of shining, though its hair was long.
Rachel looked down at the girl. Dressed in a dark brown to Rachel’s gray-white, Cassie had grown her hair long, tying it back into a ponytail, fuzzy earmuffs in place with the half-circle of metal beneath her hair. The elbows and sleeves of her jacket and pants had been patched with a heavier material. Her only nod to fashion was a spiked collar she wore, and a badge on her arm, which had a series of letters.
She’d asked once, and she’d gotten an answer. Wag the dog. It was supposed to be a joke, but Rachel didn’t get it, and the explanations had only confused her more. - Excerpt from Teneral e.4