Out of the Cage

This is a future era. Before the Third World War in the 21st century, it was called modern times. After the end of the Fourth World War, it was defined as modern times. After the breakthrough of physics, it is called modern times. An era when civilizations, countries, and societies began to invest their efforts in interfering with time, space, and planes. The main world, Earth, is the only true world in all time and space. After using technology to open the crystal wall, the mad dogs on the earth began to look at the Yuan Dynasty