The "door" from the unknown appeared together with civilization. In ancient times, humans fought against the creatures in the "door" for millions of years. Civilization continued to develop, and human beings became more and more curious about the "door". The research on the "door" continued to deepen, and at one time, the "door" was studied in depth. After the research on the "Gate", high-level officials from all over the world sealed all research on the "Gate" and prohibited anyone from exploring and researching it in any form. From the emergence of civilization to the present, human beings have been fighting against the "Gate". During the struggle, humans have obtained many unexplainable things from the Gate. Later generations called these "props" "weapons". After the emergence of these weapons, people who could use these weapons appeared. There was a link between the weapons and people. This link was later called "affinity". The higher the "affinity", the more powerful the weapons can be. The more powerful you can wield your weapons, the more you understand the world, the more painful and helpless it is. The truth should be known by as few people as possible. It is not yet time for human civilization to know all of that, at least before being noticed by "them", these truths must be buried under the coffin.
Intention: To plot and be plotted, a hunter will kill every prey he sees