People in the Demon Sect: I Have a Proficiency Reduction Panel

Chen Ling traveled through the world of cultivating immortals, but unfortunately fell into the Demon Gate. The low-level monks were like ants. What's more, a negative proficiency panel was awakened. Once the skill is practiced incorrectly, the proficiency level will be reduced by -1. Fortunately, what he practiced was a problematic demonic technique. Making positives out of negatives allowed him to find the right way to practice. From the calibration of [Dragon and Tiger True Yang Jue] to [Dragon and Tiger Yin Yang Jue], and then to [Yin Yang Heaven and Earth True Sutra]. From the calibration of [Shaman Controlling Technique] to the [True Blood Transformation of Evil Spirits], and then to the [Ten Thousand Evils Return to Origin Sutra]. Let's look at Chen Ling relying on "-1, -1, -1..." To become the Immortal Lord of the Demon Sect step by step.