As for how he could take advantage of the fact that traveling to a Group Member's world through the Space-Time Origin took only an instant back home, no matter how much time passed in the other world...
Meng Chuan had considered it, of course, and had asked the Chat Group. But the answer had been no.
The Villain Chat Group was still searching and would descend again. If Zhang Sanfeng left this world, time here could not freeze as it did in Luzi's world.
The Villain Chat Group's power interfered with the Chat Group's power.
It was trying to replace the Chat Group, after all. Naturally, it was not entirely useless.
Zhang Sanfeng also had to use the Space-Time Origin in the Heavenly Sword and Dragon-Slaying Saber World. If he went to the Yang God World, severed the connection between the Two Realms, then used the Space-Time Origin...
He would return to the Yang God World.
By then, the connection between the Two Realms would be severed. If Zhang Sanfeng left from the Yang God World and returned there, he would have no way to find the Heavenly Sword and Dragon-Slaying Saber World.
He was visiting another world so he could better protect his own in the future.
But if he went away and lost his own world in the process, that would be utterly fucked up.
And the most important reason Meng Dongyue was going to the Yang God World was, naturally, to serve as a beacon later.
Once the crisis passed, the two worlds could rekindle their bond.
After all, Meng Dongyue was connected to the Root Source of the Heavenly Sword and Dragon-Slaying Saber World. He could serve as a beacon.
Surely no one really thought that bastard Emperor Lord just wanted to run away?
He was