Doman Seiman, the mark of Yasunori Kato. These creatures start out as black sheets of paper, bearing Yasunori Kato's mark, before transforming into bird-like demons. Doman Seiman are ferocious, bent to the whim of Kato, as they will tear at their prey with razor like beak and talons. The creatures are often dispatched in large flocks, enabling them to quickly take out those standing in Kato's way.