Xuanhuan: This Proficiency Is Far Too Overpowered

He transmigrated into a fantasy world's major villain and was bound to a proficiency panel.

He'd wanted to lie flat and be a good person, but the protagonist forced him to cripple his own cultivation and humiliated him in every way!

Then so be it:

After a hundred million sword strikes, his mastery reached perfection. With one slash, he could rule the nine heavens and ten earths, unrivaled and supreme!

In this world, there are immortal sects that cultivate the Dao and martial dynasties, and everyone chases fame, fortune, and immortality!

The strong prey on the weak and treat human life with contempt!

I, Gu Changsheng, will cut off the path to immortality and bring an end to the ages!

I will restore a piece of pure land to the world!