Subject S is a regular human, except with arms and legs covered in scarlet crystals known as Crystallixium, they also have ears similar to that of a cat, though they are also made of Crystallixium. It also has a tail that is, you guessed it, made of Crystallixium. It always has a careless smile on its face. It is very swift and can outspeed the average human easily, though it doesn't use this to its advantage that much, as they are ironically friendly. Their eyes glow a crimson red.