The Legend of Immortals and Shu

Liu Yu practiced for thirteen years with no results, and became even more convinced that his master was a big liar who was free to eat and drink for free. Until one day, words and patterns appeared on the originally blank tenth page of "Invincible Immortal Cultivation Technique". Function 1: Preliminary mastery of absorbing the spiritual energy of heaven and earth and automatically converting it into cultivation points. The conversion efficiency is low and there is no risk. Function 2: Master the ability to absorb the aura of heaven and earth and automatically convert it into cultivation points. The side effects are very strong and the risks are uncontrollable. Oh my god, how come this is just like stock trading? High risk, high reward? A life where the storm gets bigger and the fish gets more expensive begins...