Calista (Japanese: ミココ Mikoko) was the character of the day in Xatu the Future. Using Xatu, Calista was able to predict the weather in the small village she lived in. One day, she began to panic because the Xatu prophesied that a flood was about to occur. Calista faced a dilemma, because she was unsure whether she should alert the town or not. In the end, she told the town that the Xatu had predicted a terrible storm. The villagers threw all of their belongings toward the Xatu and then fled the stadium. The Xatu teleported Calista, Ash and his friends out of danger. Calista released the Xatu and then became a weather reporter for a TV station.