Start Cultivating Immortality by Reversing the Magic Power of Yin and Yang

He had just traveled through time and was refined by the secret techniques of the devil. He was also forcibly accepted into the devil sect and even assigned to learn the yin and yang magic skills! Is this the rhythm that will turn Qin Feng into one of those witch power banks? Fortunately, Qin Feng has awakened the negative reversal system and uses various techniques, pills, and secret techniques. The greater the side effects, the happier he is! Looking at it this way, it seems that becoming a demon cultivator is not impossible...