Galaxy: I Have a World of My Own

When he wakes up, Yu Xin, an 18-year-old college student, has not only transmigrated to an interstellar age ten thousand years in the future, but also shrunk into a 12-year-old boy! Technology has reached its peak, humanity has spread across the galaxy, and people can cultivate stardust and awaken special abilities: controlling the elements, achieving sainthood through the body, even moving objects with their minds! Why has he woken up in another world?