it's a cool summer night Callisto is a 16 year old girl that works night-shifts at a convenience store, named the "inconvenience store". Callisto is wearing her uniform. Callisto hears some chatter outside she looks outside and there are her classmates, Ganymede, Io, Europa, Titan, Iapetus, Dione, Mimas, Titania, Umbriel and Triton. Titan: How bout' we get some chips? Io: Yeah, with some cola! Callisto's classmates enter the store