Interstellar Tiger

In the deep universe, there is a human civilization with dual political systems. They are called twin civilizations by other civilizations in the universe. In the year 4833 of the Universal Era, an unprecedented large-scale cosmic war occurred. This was supposed to be an internal struggle among humans, but more and more interstellar civilizations with ulterior motives joined in, and the situation began to develop in an uncontrollable direction... In this turbulent situation, a force that does not belong to this universe appeared here. They were divided due to unknown reasons, and thus began a war within the group...