Black

As a human, Secre is a short, slender woman with black hair in a bob style. Two strands of hair stick out from the top of her head. She has dark bags under her eyes. She wears a black dress with thin straps and a short, ruffled skirt that resembles feathers. Due to the use of Forbidden Magic, two black horns grow on the sides of her head. [8]

After becoming a member of the Black Bull Squad, he begins wearing the squad's signature robes.

Secre is generally apathetic. In situations where those around her are behaving intensely, particularly during moments of shock and excitement, she maintains a deadpan disposition and has a tendency to get straight to the point without any regard for the antics going on around her, such as when Charlotte Roselei ran away from Yami Sukehiro in embarrassment and she simply pondered whether or not he had the chance to ask about the weg. When angered, she repeatedly pecks Asta's head or pulls his hair. [11] Furthermore, she also has a penchant for using this tactic to convey her thoughts to others as well, or when she disagrees with them.