Su Ruanruan, a disciple of the Qingyun Sect, is falsely accused and thrown off a cliff, but unexpectedly awakens a powerful force. Three years later, she returns dressed in red, determined to uncover the truth behind the deaths and disappearances of her fellow disciples. Facing the misunderstanding of her sect, she fights alongside her master, Xuanqing, who has silently protected her all along. But as she investigates, she discovers that Bai Ling, the senior sister who framed her, is actually her long-lost twin younger sister. The sisters reconcile and let go of their grudges, joining forces to expose the mastermind's conspiracy to destroy the peace between the two realms. In the end, they protect all living beings and achieve a true family reunion.