Facing Millie during his last stream was not Mysta's only act of defiance against the clique. Detective Pomu and Professor Selen were supposed to keep fighting the good fight, but the clique was aware of their intentions and got rid of them next.
However they managed to deliver Mysta's final move. Disguised as part of a game, they left us a secret message that they trust we would eventually decipher thanks to the clique becoming more arrogant.

>https://www.youtube.com/watch?v=-IfqZQvZ588

Hidden in plain sight, the shadow managers exposed!