In the vast starry sky that never changes, a new star of mankind suddenly fell silent under the weapon called silence.
In the Milky Way, humans who originated from the Earth gradually established a country covering multiple planets that could survive, and spiritual civilization and technology continued to advance. At this time, after coming into contact with an alien civilization that later generations called "Carlo", also known as the Colored Stone Civilization, the war broke out in an unpredictable way.
The whole story takes place in one day, please believe that everything is possible.
Individual and collective resistance.
It has nothing to do with the mecha monster Ultraman, it is completely the technology and aliens imagined by the author himself.