Zenibako, Coco

Coco Zenibako is one of the Humanoid Shuuki who resides in the Hidden Village.

In her human form, Coco was a rather petite young woman with short hair and small eyebrows.

After becoming a Humanoid Shuuki, her hair turned white, and she gained gold eyes as opposed to their usual color. She grew one horn on the left side of her head and black marks under her eyes. It is noted that Coco is dressed in the same skintight outfit as other Humanoid Shuuki.

She cares a lot about her friends and allies, healing Yuuki, Aoba's younger brother, by using her powers and being irritated after seeing the scars that were on Naon. In comparison to Aoba and Naon, Coco is almost like the younger sister among the trio.

[Spoiler] At some point, Coco ate a Peach after getting trapped inside of Mato. This resulted in her powers running rampant, turning her into a Humanoid Shuuki. [/Spoiler]

(Source: Mato Seihei no Slave Wiki, edited)