Wasn't planning on making her an actual character, but now that she's all drawn up and colored and stuff, I might. She's part of a rogue pride of killers, and is one of the most fearsome. She kills to cause pain. This pride is the group that takes in Kuruka, my cruel rogue, and Tusi is her mentor. It's where she gets her desire to prolong suffering of her victims. Yes, her name means insult on purpose. Not completely sure of her entire backstory, but her mother was incredibly mean, and did not want her cubs. So she gave them all horrible names. Tusi did not have much joy in her life.
Apparently the comments are glitching out... here's my reply to your latest one below: Her mother didn't cause all those scars, most were given by other rogues she fought. Tusi was pretty much insane.