Ay Matra is a small metallic creature that looks like a teenage girl. Her body seems to be plated with grey metal combined with a brass-colored material. Her eyes can turn completely colorless, but when she’s experiencing emotions, they light up in a blue color. When she casts, they turn neon red.

Her behavior pretty much has two modes. In a social setting, she’s curious, innocent and easily makes friends by being vulnerable. When things get serious and a fight breaks out, it seems like she turns into another person, almost in a ruthless fashion.