This was indeed a privilege, but one that had been fought for.
Mu Yuanyuan was more than a mere Frontier Lord of one star.
He quickly completed the procedures and brought Duo Lai and the other two in with him.
Stepping into the high tower was like passing through the Gate of the Secret Realm. The gate separated the inside from the outside, forming an independent world.
Mu Yuan seemed thoughtful.
He was observing.
The environment inside the tower was quite ordinary, with only an empty space paved with green stone slabs.
The space led upwards, winding upwards at the end.
The entire Nirvana Tower was a spiral tower ascending upward, with nothing inside.
There were only practitioners who had entered one after another.
Two figures were visible a few hundred meters away.
They struggled to take one step after another, their foreheads already covered in sweat.
"Looks difficult?"
"Indeed, I do feel a bit uncomfortable."
Duo Lai said.