All events take place in space, in the solar system. But all celestial bodies except asteroids are alive, have eyes and a mouth, and can speak and think like a person. It has no legs or arms, only eyes and a mouth. Ganymede is the moon of Jupiter and also the largest moon in the solar system. Ganymede has friends, these are the other Galeian moons of Jupiter. These are Callisto, Io and Europa. Europa is Ganymede's ex-girlfriend. They don't have a particularly good relationship at the moment.