Binof Leadership Yumenes is a member of one of the Stillness’s most powerful families, but she rejects her family’s way of life and is eventually disowned for it. She first meets Damaya at the Fulcrum, when Binof sneaks in among the other grits to try and find out more information about a secret hidden at the center of the Fulcrum—where the obelisks were originally built. In the years after the two girls are separated, Binof breaks the Yumenes Leadership’s traditions both by wanting to become a geomest and because she is a trans woman, and so her family sends her to the prestigious Seventh University and quietly disowns her. Binof then takes the name Tonkee, continues her studies of the obelisks, and eventually tracks down Damaya (now called Essun) once more because of her connection to the obelisks. The two meet again on the road as the Fifth Season begins, though Essun doesn’t recognize Tonkee at first. Tonkee decides to travel with Essun after seeing Hoa exhibit his strange powers, and they journey together all the way to Castrima, where Essun finally recognizes Tonkee as the girl from her youth. Overall, Tonkee is presented as extremely intelligent, curious, and talkative, fascinated to learn everything she can and lacking in social subtlety. At first very naïve about the world because of her privileged upbringing, in her middle age Tonkee lives as a commless (essentially homeless) woman and seems to have no perception of her own hygiene, as Essun frequently notices her odor and matted hair.