Mortals Cultivate Immortality, I Awakened the Dual Cultivation System

When Li Xuanchen woke up, he found that he had traveled to the world of cultivation. What was even more tragic was that he was sold by a trafficker to a wealthy family in the mortal world as a horse slave! The unwilling Li Xuanchen tried to escape, but was beaten mercilessly. However, an unexpected service allowed him to awaken the dual cultivation system. As long as you perform double cultivation, you can obtain essence points for upgrading.