Callisto's Links
Callisto finds the little bird odd and has, on numerous occasions, tried to pry information about the Sailor's past out of him. He does find him a bit irritating, but refrains from showing it as the Sailor is often his only means of travel.
The Sailor doesn't have much to say about Callisto, though he does find his tendencies rather strange. While anyone can appreciate the beauty of the Crystalline City, he believes that Callisto takes it a step too far and has fallen too deeply into an obsession.