True Qi Era

Li Ying traveled through time and came to a world with true energy! Refining Qi? Magic circle? Spiritual stone? He said, in what age is it, who is still a traditional Qi practitioner? As he said that, he took out two books of peerless mental techniques from his arms. One word algebra One word geometry This is the era started by me! Just when Li Ying was about to show off his talents, he was dumbfounded Isn't this expansion right? How could I be a ball? !