After Knowing the Plot, I Can Take Advantage of the Villain's Back

The master thief Mu Xiqian transformed into the cannon fodder female supporting character in a male fantasy novel just because she stole a Phoenix Stone. She angered the male protagonist many times and finally had her eyes gouged out and died. The male protagonist is the Demon Lord Ji Wuyue. In his previous life, he was redeemed by the so-called Nine Heavens Goddess, so he gave up the power of the Demonic Way. However, after losing his power, he was betrayed by the world of cultivation, had the golden elixir crushed, and was thrown into the eighteenth level of purgatory, where he was tortured. After being reborn, he directly holds the golden finger and becomes the biggest villain in the book. He regains the power of the Demon King and wants to wipe out the world of cultivation. The ridiculous redemption, what a goddess, can be wiped out with a single blow; the most hated betrayal, what a decency, can be wiped out with a single blow; a cannon fodder female supporting role? I've ruined his good deeds many times and it's all done with one knife. Mu Xiqian: "Wait a minute, this can't be done." [Introduction to the female protagonist version] There is nothing in this world that she cannot steal. However, a blood pupil put her on the road to eternal destruction. Step on yin and yang, control ghost fire, support all beasts, kill gods and demons. I don't know that, the wind and clouds are changing, the six realms are in chaos, and the corpses are lying around and the bones are withered. Who can turn the clouds over? Look at me covering the sky with just one hand!