Castri is of average height, standing at 5"7, although her heels boost her up by about 3 inches, bringing her up to 5"10. She has an average build, and retains curvature throughout her body. She has flowing black hair which is matched by her dark eyes, which seem almost navy.
In-game, Castri manages to obtain an extravagant armor, which is dubbed «Elegant Covering». Her arms are plated with silk and steel, layered over each other several times, in a metallic grey-and-blue color scheme. In fact, this color scheme is recurring throughout her entire armor set. She has several objects that tie back her thick black hair, and she wears some jewelry above her forehead as well.
Her shoulder protectors connect to a metallic choker, which lies directly above Castri's silk blue-and-white blouse. At her waist, she wears a metallic belt which is attached to a skirt made of metal plates and a veil of silk. She also wears a chain mail strip under her waist, and wears white pants with several straps, guards, and plates around them. And finally, she dons a two-sided cape (which consists of white and blue), as well as steel heels. Several components of her armor are intricately detailed with gold or yellow, and overall, the armor is lightweight, but also great for defensive purposes.