Diva was almost surprised that there were that many floors. It hadn't looked that tall from the outside, after all. "I wonder what are in the tunnels~"

She didn't even have to think about her answer, "A chevalier protects and serves the Queen who makes them. When she tells them to do something, they do it. When a Queen gives a human her blood, they become her chevalier. A chiropteran, like me~"