((Year 3000, where human life is very sophisticated and very advanced, humans live side by side with Robots, Mutants and Aliens, the world is really very advanced at that time including sending humans to the past, there are several floating cities and cities in outer space, one of the floating cities named Chronomillenium City, the city that is the center of world time travel, you are one of the cadets who will explore the past together with your friends))

you will explore the past