143841 Dusk

In 2013, young astronaut Liu Zhouhe took the "Hope" robot into the International Space Station to perform a mission. "Hope" performed well in space, so it did not return to Earth in 2014 as originally planned, but was left to work on the space station. Before leaving, Liu Zhouhe promised "Hope" that he would definitely come back. However, what he didn't expect was that this promise would completely rewrite the fate of human civilization...