Named after the planet Jupiter's second-largest moon, which sports a cratered surface and a possible ocean.
Callisto is one of the founding members of the Sagittarius Pack, joining before the pack had experienced their first winter. She also acts as one of chasers of a hunting party for the pack. Eros' dedication and her confidence form a vary diligent pair of chasers, the two being relentless in their roles. Her other party members -- Astraea, Eros and Pereyra -- would regard her as being the more optimistic one when a hunting escapade goes awry, her conviction not budging in the face of failure.
As well as keeping up the spirits of her party members, she extends this confidence to her pack members, sometimes with mixed results. Once, she was incredibly confident that a young Erinome could scale a tree, only for the pup to fall and land on her back. Catalina could be heard yelling at Callisto from all over the territory, and the two have since avoided each other ever since.
She and Betelgeuse used to be extremely close, but, after their four pups unfortunately passed, their relationship has been strained.
