Secret Records of the Demon Sect

At that time, the four major immortal mountains in the world competed for the first immortal mountain to slay demons, thus starting a crazy journey of cultivating immortals. As a result, the protagonist failed to become a fairy, suffered various situations, and finally became a demon. But I found that the devil is not a devil, the immortal is not an immortal, and the Tao can be taught! Very Taoist!