At some point, people who explore the road with a focus on activating the road between the space cities appeared.
They wander on the space road, calling themselves space travelers, and wandering around the vast ocean of space, calling it a trip around here and there.
They become taxis for cats who work in the city, contributing to revitalizing space cities.
A peaceful universe that has already been pioneered. And let's become the protagonist of a floating space traveler.