
Summary
Tetra serves as the youngest daughter of Teto and Calra, holding the position of older sister to Calcara. Although she is a being of non-human origin, she appears to be approximately eight years old in human years.

Tetra serves as the youngest daughter of Teto and Calra, holding the position of older sister to Calcara. Although she is a being of non-human origin, she appears to be approximately eight years old in human years.