Forces from all realms in the Myriad Worlds gathered in the Outer Boundary. In the beginning, no one knew if the Outer Boundary was inhabited. What was known was that many people from Myriad Worlds settled in the Outer Boundary and started families after leaving their respective homelands. For this reason, many natives of the Outer Boundary were descendants of those from the Myriad Worlds. However, due to their long history, some of them only knew their ancestors came from the Myriad Worlds and did not know the details.
Even supreme powerhouses from the Myriad Worlds did not dare to be careless in the Outer Boundary like they might be in their respective Worlds. After all, there might be supreme powerhouses, who were natives of the Outer Boundary, who were more powerful.
