Hoibun (ホイブン, Hoibun) and Sadato (サダト, Sadato) are a minor ancient mamodo team under Zofis command. Hoibun looks like a humanoid bird, allowing him to fly. Sadato is a man who was brainwashed by Zofis. They only appears in the manga on chapter 142.
They are part of the group that attacks Zatch and Kiyo on the top of Devolo Ruins. But, like the rest of their allies, they are defeated by Brago and Sherry.