The Demon Palace, the Heavenly Dao Sect; the righteous path, the demonic path; master, master's wife, beloved wife; birth father, demon! Though he wishes to do good, the righteous path will not accept him. Though he is the son of the Demon Palace, abandoned by the righteous of the world and relentlessly hunted, he remains devoted to the Dao and refuses to fall into demonic ways. How can Nangong Yunqing save himself?
His beloved wife, Beigong Linglong, is willing to die in the Demon Palace so he can break free of it once and for all and return to the righteous path, all to ensure he can find complete redemption and release...
In the end, thanks to Beigong Linglong's sacrifice, Nangong Yunqing resolutely returns to the righteous path. In the final battle between good and evil, he succeeds in killing the Demon Palace's master, who sought to destroy the world: his own birth father, Yun Tianxiao. He fulfills his long-held wish to use demonic power to defend the righteous path, saving the righteous of the world and all its people...
But after the final battle between good and evil, Nangong Yunqing himself has become so deeply demonic that his mind grows ever more unstable. At any moment, he could fully succumb to the demonic path and become another demon who brings chaos to the world.
So, to keep himself from bringing disaster upon the people, Nangong Yunqing finally makes the resolute choice to let his soul be utterly destroyed and follow Beigong Linglong into the afterlife...