The Story of the Inverse Galaxy: the Journey of the Star Hub

Lin Ruixuan, a 12-year-old boy from the world, travels to the future apocalypse of 2204 with a mysterious candy box. The alien prism civilization invades the spiritual sea world, and human civilization is on the verge of destruction. He meets Risa Asakawa, a girl from across time and space. They each hold a Galaxy Core. In the broken human resistance base, they face alien invasion, factional strife within the base, and obstruction from hegemonic forces. They unite survivors from different positions to resist the predatory alien civilization, protect ordinary people, complete the growth of young people in the flames of war, and finally complete the decisive battle and start the journey back to time and space. This is my first work, please correct me if there are any mistakes and I will revise it as soon as possible.