With the rapid development of science, mankind has been able to advance into space. However, contrary to human expectations, space advancement did not lead to a rosy future for mankind. As mankind entered space in earnest, some alien species began to be checked, and some of them were approached with the aim of destroying mankind. Humans were afraid of contact with alien species, but with experience, they were afraid. I was shaking it off little by little. The reason why mankind was relieved was that the alien race that came into contact with mankind had a higher level of consciousness than mankind. As contact with friendly alien races continued, humanity slowly began to unravel its vigilance against alien races.
