Horns. That is the most immediate observation that strikes zaShunina when Lucy calls for his attention. Something that sets her apart. Something that makes her information unique. Not a human trait, surely. What is she?

"Kado." He answers and comes to a stop, and the small cube spins in the air to float over to her as if happy to have someone paying attention to it. "Specifically, this unit is a fragment of the Boundary Device called Kado."