Travel Through Laozi and Have Dual Systems at the Beginning!

Traveling through the prehistoric world, you choose to become Lao Tzu at the divine level at the beginning! Others' time travel is a separate system, but who knew that Zhang Feng's time travel actually has a subsystem, a one-click training system! This is awesome! Open the one-click cultivation space, practice a million times faster, and achieve breakthroughs in an instant to become Hunyuan Da Luo Jinxian! Open the one-click elixir refining space and make billions of nine-turn golden elixirs without the need to refine them yourself! Open the one-click weapon refining space, what a weapon refining madman Yun Zhongzi, I am afraid you are not the weapon refining grandson in front of me! Open the one-click formation space, and various innate formations are at your fingertips. The third brother asked me to tell you how to use the formations! After opening the one-click treasure hunting space, Taiyi, who was still refining the magic weapon, was confused. Why did my Chaos Clock suddenly disappear? What's even more terrifying is the god-level selection system, with all kinds of crazy rewards! I am the leader of the Xuanmen, I am the supreme master. I control the lifeline of the Xuanmen and control the general trend of the world. In front of me... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.