In Greek mythology, Zeus fell in love with a goddess named callisto, who was the female companion of themis. Zeus' wife Hera was very jealous. She found that Callisto and Zeus had a son named Arcaz. Hera then turned the beautiful crystal peach into a bear. Crystal, who becomes a bear, meets her son Arcaz. Just when unwitting Arcaz wanted to shoot his mother who became a bear, in order to avoid the tragedy, Zeus turned Arcaz into a bear and put the mother and son in the sky, namely Ursa major and Ursa minor.