Cultivation of Immortality Begins with Binding the Master

Xu Shu is an ordinary person with no qualifications for cultivating immortals. He uses the system he carries with him to bind the master. According to the quantum entanglement theory, he can gain a certain level of cultivation when the master practices. He started training from 0, decided to top up his attributes first, and unexpectedly tempered it into a perfect innate body. He had amazing power even before he entered the Qi training realm. However, the backer fell, and when the master broke through the realm, he went crazy and went crazy, and his cultivation level regressed from the golden elixir realm back to the Qi training realm. What should Xu Shu do? I can only work hard to help the leader practice again.