From Eroraen's VN - Koko is a Demi-Human, a species of mysterious origins that integrated into society. Koko has brown hair and is taller than most humans. She has cracks across her face and fingers which transform into branching claws. Koko seldom talks about herself, rarely getting along with anyone, even other monsters as result from being left by her mother in the forest. This lead her to meeting Seiichi, a human boy playing in the woods. It's since been her sole desire to reunite with him.