Alrein wasn't like Liye. He was the one who created the universe and lived an eternity on a time loop. When it came to developing new skills, he was far better than anyone else in his universe.
"Easier than expected. I just need to prepare it and cross the passageway just before using it. I bet no one would expect this. Even better if I sync it with what the others are doing."
Alrein could imagine the face of shock of the Supreme God when he saw both passageways closing at the same time.
Of course, Alrein only created a sealing skill. The passageway wouldn0t truly be closed, but opening that seal would require time. Anyway, it would open on its own after a while, so Alrein wouldn't mind if the Supreme God waste his strength trying to open it earlier.
That passageway was too big to properly close it, and even if there was a method, there was no way it could be used without the Supreme God noticing it and interfering, given how long it would take.
