Tia was created with dark matter by Tex during the first few years of the THX logo's existence as an asset for people who feared it. after seeing that she was too kind, he made Tobias, her little brother. He was going to experiment on him so he was perfect. But before he could inject him with some dark matter, Tia got in the way. The matter was overriding her mental state as she started to turn into a distorted and morbid shadow demon.
Tex taught her how to control it despite wanting Tobias to be the one with the power. Tex sent Tia through a portal of tvs, and her first kill was on October 30th, 1989. She started to fail her missions around 1997, and Tex had sent her to a void that was deafeningly silent. She never saw her brother again until she was freed from her prison by Via and her friends. Tobias escaped Tex in 2000, and Tia escaped in 2018.
Tia is 23 and stopped aging after being trapped in the void. Tobias is 18, and also stopped aging. But soon after they defeat Tex they go back to normal and age like normal humans.
