To break a powerful curse and save his clan, Lu Qianqiao is reborn as a human and secretly marries Xin Mei, a gifted cultivator with a fated curse. What starts as a mission of survival soon entangles them in betrayal, memory loss, and growing affection as they face deadly trials and uncover their intertwined destinies.

Yan Dan is the only descendant of an ancient tribe, the four-leaf scorpion. Since ancient times, her whole body has been a treasure of medicine. She and her twin sister Zhixi were able to cultivate into human form at the Queen Mother's Feast a hundred years in advance and encountered the biggest trial in her life - the love trial. She fell in love with Lord Ying Yuan but had to spend the next 800 years forgetting him. However, at this time, Yu Mo suddenly entered her life, and become her great support. Every day, Yu Mo takes Yan Dan out to do good deeds. One day while they were punishing evil, they meet Lord Ying Yuan's current reincarnation, Tang Zhou, who is currently a demon hunter. They help Tang Zhou search for the four ancient artifacts, and also discover a mysterious secret.

Set in the late Tang Dynasty during Emperor Wenzong's reign, powerful eunuchs control the court. An attempted coup to overthrow the influential eunuch Qiu Ziliang fails, leading Qiu to order the massacre of Prime Minister Wang Yang’s family. Two granddaughters escape, but they are separated. Seven years later, the new emperor, Qi Yan, establishes the Purple Clothes Bureau to confront his godfather, Qiu Ziliang. Now grown, the sisters return under new identities: Qiu Yanzhi as Qiu Ziliang’s adopted daughter and Chen Ruoyun as Qi Yan’s sword-bearer. Although on opposing sides, both seek to dismantle Qiu Ziliang’s power and restore balance to the Tang Dynasty.

Set against the backdrop of the Eight-Nation Alliance’s invasion of China, the film follows Zhao Ting, founder of Beijing’s cloth shoe brand “Neiliansheng.” Through hardship and resilience, Zhao rises from repeated setbacks to pioneer early database-style marketing in China’s footwear trade. In building Neiliansheng into a national brand, he also navigates complex emotions—expressing unrequited love for Xiaocui while ultimately winning the heart of Xiaoyun.