Soryō (祖霊, Soryō) is an inferior creature, a spawn of the mysterious Yūki that came into this world as barely anything more than an incidental of her being. Barely capable of speech or rational thought, it would be an insult to most humans to label Soryō as one. Still, he remains a valued member of her organization, because his ruthlessness in battle might even trump his idiocy.