After Becoming the Wicked Supporting Female Character, I Reached the Pinnacle of Power

[1v1, powerful leads + transmigrate into a book + female supporting character's comeback + anti-sentimentality expert]

One day, Si Kou transmigrates into a book and becomes a vicious female villain, a cannon-fodder character in a sweet cultivation romance about a universally adored heroine.

To avoid her destined end of having her spiritual roots destroyed, her face disfigured, and being thrown into a mass grave, Si Kou immediately throws herself into hard work and cultivation, determined to rely on her own strength and become impossible to kill.

Who could have guessed she'd try so hard that she'd accidentally become the most powerful cultivator in the world?