There were four days between the meeting of the three worlds and the Midnight Games. A lot happened during those four days, not only on the three planets and the Midnight Inn, but amongst the various forces inhabiting the world.
Starting at the lowest level, the atmosphere on Earth became very lively all of a sudden. Rumor had it that various companies, families and organizations received a mysterious invitation. Only the heads of those organizations got the invitation, but when considering that the invitations were sent worldwide, the number easily reached thousands. A lesser known fact was that the elite troops and cultivators for each power and organization were quickly recalled.
An even lesser known fact, and one that scared the few who even heard it, was that the five ruling families released a statement inviting the head of the 'rebels' to a meeting. What happened as a result of that, and if the meeting was ever held was unknown.