Celeste, known in Facilty 3 as "STM", is a robot who had been built for the purpose of keeping the Subjects from going crazy/rouge. They were disigned by one of the labs founders, who just wanted a friendly lab assistant for employees, but they would soon quit before full completion, after realizing what the facilities were planning to do. Celeste had began to live in the labs walls, being stuck in the area for a long time due to some tie they have with the lab. After a while, they had found a solution - Keeping their data within a computer they carry with them at all times, though they still stay at the lab most of the time or else they would probably be tracked down, only leaving when given an oppertunity. Their antenea are connected to their feelings, meaning that they go in different positions when feeling different ways.
Monsters of Etheria for the Pixbee disign