His Quirk grants him a set of large bright red wings with feathers that gradually lengthen the further down they go.

The marks around his eyes are natural since he already had them as a child. His eyes are golden-brown and rather triangular, with two little black triangles just below his tear ducts, making his eyes somewhat resemble those of a bird. He has feathery, ash blond hair, swept messily backward, with some of the front tufts sticking up in arcs above his head, notably thick eyelashes, and some faint stubble on his chin. He himself has pointed out that his back muscles are not broad enough.

Keigo is a man of average height with a slim and narrow build.