Practicing an evil art by mistake, Law of Heaven and Earth.

Duan Yun traveled to this world and unexpectedly obtained a Great Medicine cultivation technique, the "Jade Sword True Interpretation." He did not expect that he was a one-in-ten-thousand cultivation genius. Without even realizing it, he allowed this technique to undergo a complete transformation, using the Jade Sword to point the way and pierce through everything. Later, as the number of techniques he mastered grew, driven by the philosophy that "those who have attained success should help the world," Duan Yun never kept secrets and spread martial arts across the land. Who could have guessed... "Devil Duan misled me! He told me this technique nourishes yin and strengthens yang, but now I can only pee while squatting, boohoo..." "This 'Seven-Part Return to Origin Qi' was taught to me by that devil. Now, I'm either being killed or stepping in shit; the divine fortune-teller said I've lost seventy percent of my luck." "Do not listen to a single word Devil Duan says! The fairies of the Myriad Wonders Palace were originally going to ascend to heaven as a whole palace, but instead, they fell into madness overnight and became demonesses—all of this was the handiwork of Old Devil Duan!" ... Duan Yun was utterly perplexed. He merely practiced some martial arts, passed on some techniques, and occasionally performed a "Law of Heaven and Earth" manifestation; how did he become a devil whose crimes were too numerous to record? This is slander! With the exact same techniques, why am I the only one with no problems? You are the ones who are wrong; it couldn't possibly be me!