I Can't Afford to Offend You, My Good-For-Nothing Senior Sister Is Invincible.

She is a good-for-nothing senior sister of the Chixiao Sect, the first sect to cultivate immortality in the Wuji Immortal Realm. Because she harbors a grudge, she attempts to defeat her nephew who practices the ruthless way. The young nephew is honest about his duty and abides by the Taoist heart. The two work hand in hand to kill demons and protect the right path... He finally fell in love with her uncontrollably... Wait, why does my nephew have demonic energy? Could it be that he has gone crazy? She can actually use demonic energy, is she a natural demon cultivator? What? The head of the Chixiao Sect, her biological sister is actually a demon? The Scarlet Heaven Sect is going to be shaken up! A born immortal bone was sealed and turned into a loser... A famous disciple who is famous all over the world is the daughter of the Demon King... There is also a future proud son who is the Demon Lord... Even the Saint Chixiao whom the world admires is nothing more than a despicable villain who tries to seize the treasure of another sect! The seal shattered, she resurrected from the dead, and returned powerfully with her natural immortal bones. The demon heart of the person she loved most awakened, and she became the new demon king...