Four female friends and former classmates – Xia Yan, Zhao Xiaolei, Xiang Nan, and Han Shuang – have formed a bond that could last a lifetime. But as they approach the end of their twenties, they all find themselves facing up to a range of very different challenges.

Liang Shuo, a Communist underground operative with a head wound, awoke in a snowbound mountain, and his memory was gone. Facing multiple threats, he must navigate a dangerous path to reclaim his identity. With help from unexpected allies, he embarks on a quest to uncover and confront an impossible mission.

A gifted girl haunted by her family’s massacre teams up with a fallen detective and a mysterious magician to solve eerie crimes, uncovering a hidden mastermind behind it all.

Rong Jinxiu, a country girl, travels to Shanghai to uncover the truth behind her family's death and crosses paths with Zuo Zhen, a triad leader. As they fall in love, Jinxiu also draws the attention of businessman Xiang Yingdong. Amidst growing danger, Jinxiu must navigate love, rivalry, and threats to her family’s survival.