Luciana Estevez is a doctor and former human that appears in the second season of Blood Blockade Battlefront.

She is able to divide herself into numerous units causing her to de-age and look like a child.

Blood Technique:

Phardem Triga - Luciana and her clones slices her victims with her scalpel, thus, causing the latter to split into pieces. The clones then become one Luciana who has longer hair and a more mature physique.

(Source: Kekkai Sensen Wikia)