The Seventy-Two Transformations of the Earthly Fiends each possess a unique supernatural power. A magical yellow book sends Li Chang'an back to the ancient world, where he gains a new supernatural power for every demon he slays.

Painted Skin Demon, Zombie King, Spider Demon... one by one, demons fell under his sword.

The supernatural abilities—spiritual communication, swordsmanship, demon slaying—were all acquired from the book.

When he vanquished the hundred demons and looked around with his sword drawn, he realized that it was all just a small ripple before a mighty tide.