He appears as an androgynous adolescent Girl with long dark purple hair reaching beyond his feet while his bangs cover his left eye. His hair often gently waves in the faint breeze when he is within his realm. The only instance when it does not is when he is walking in the physical world and his hair is parted at the back in two sections. As a vampire-gone-demon, he has red eyes, fangs, and pointed ears. When the curse restraint loosens, his horns grow larger and the nails on his hands and feet become claw like.
For clothing Asuramaru wears a sleeveless open-back dress including a collar with gold beads covering his throat. The chest piece is black while the rest of the dress is white, and the gown splits open at his outer thighs which frees his legs for movement. He wears black sleeves separated from the gown that reach his mid-upper arms and come down to his middle fingers, where each sleeve is