Su Lengyan lived a lifetime of doing good deeds in her past life, yet she was framed by her junior sister, abandoned and biased against by her master, and ultimately died a tragic death bearing a bad reputation. Reborn back to her twelfth year, she sees through human hearts and decides not to compromise anymore. Relying on her mutated wind spirit root, she cultivates bitterly to grow stronger, slapping her enemies in the face with absolute strength and protecting those truly worthy. Facing the junior sister who once snatched everything away, the master who looked on coldly, and the pressing destiny, she responds to malice with coldness and cuts off calculations with the edge of her sword. During an adventure in a secret realm, she unexpectedly encounters the mysterious and powerful demon lord Siyu. From standing against each other to standing shoulder to shoulder, the two jointly uncover the secrets of their past and present lives, embarking on a counterattack path of sweeping the cultivation world and protecting all living beings.