Bai Qi's face was full of mockery. As soon as the seven angels emerged from the Black Fog, Bai Qi had already begun plotting how to "shut the door and beat the dog."
The space ability of that Black Fog was strong, and Bai Qi even suspected it was a Mythical Creature, but regardless of its Level, any Mythical Creature that wanted to enter a space already under someone's control must pay a price.
And here, in this about-to-shatter Secret Space, Delta had been gradually asserting his will since entering.
And the moment Delta merged with the Original Sin, he took advantage of the surge in Spirit Power to take complete control of the Secret Space.
With the brutal effects of the Void Tyrant and the bonus from the Original Sin, the Black Fog would probably not have been able to enter if Bai Qi hadn't specifically instructed otherwise.
As for Bai Qi's goal, of course, it was to capture the mysterious teleportation tool, the Death State, along with everything else!