After Redeeming the Demon Lord, I Faked My Death

[Complete] Fu Yaoyao grew up alone and destitute, without the spiritual roots to cultivate immortality. After struggling to survive in a world overrun by demons and monsters, she was finally on the verge of living a good life. Suddenly, her soul was forcibly pulled into another body. The lingering soul within the body seemed mentally unstable, screaming madly: "I have planted a love gu in the demon lord! Once he falls in love with you, the gu will activate! He will suffer the agony of ten thousand gu devouring his heart, shattering his bones, and severing his tendons. His life will be tied to yours, living and dying together! You must make him fall in love with you, make him endure endle...