He is a Cleaner from the Eager faction. Tamsy is calm, often showing little emotion even in the midst of battle. He seems completely used to life in the Abyss to the point of dismissive, saying “don’t let it get to you” and “don’t mind it” when discussing frequent deaths.

Despite his gentle demeanor, Tamsy also harbors resentment for Spherites and has a sadistic side that he keeps hidden.

(Source: Gachiakuta Wiki)