Lu Academy was a collection of martial arts novels created by Mr. Jin Yong. It contained dozens of novels that told the stories of many martial arts characters created by Mr. Jin Yong. Since Lu Academy was Mr. Jin Yong's work, there was no copyright problem, so he could read it himself without spending money to buy it. However, if you want to read the full version of Lu Academy, you may need to pay for a physical book or an e-book. The specific price may vary according to the region and channel.