Bubbly, Lively, Joyful and Childlike Individual.
( From Mato Seihei no Slave / Chained soldier )

In her human form, Koko 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 Koko is dressed in the same skintight outfit as other Humanoid Shuuki.

