The Tang Dynasty's Demon-Subduing Edict

[No System, just the protagonist's constitution. If you want a System, don't bother reading this] Years later, every martial arts, Daoist, and immortal cultivation manual in the Tang Empire had a new line added: “Learned in as little as one hour,” “Certified by Su Ziling: learnable in one day,” and “Officially certified by Su Ziling: profound martial arts learnable in three days.”

Faced with mighty figures and great immortals from all sides, Su Ziling pointed at them and cursed, “Don't think you can use me as a test subject just because I'm talented. I don't give a damn whether your secret arts are any good. I'm not learning them.”