During the peaceful period of Song and Liao, Tang Ziyan, an agent originally trained by the secret organization "Phoenix Fire Army," is placed in the Imperial City Department in Beijing. While Tang Ziyan wanted to quietly quit and have a peaceful remainder of her life with her husband Zhou Qian, her husband was taken away by the Phoenix Fire Army to threaten Tang Ziyan. She now has a new mission set by the army: To assassinate the visiting envoy of the Northern Dynasty. During this period, Zhou Qian'an was shot and killed by the Phoenix Fire Army and Tang Ziyan is determined to take down the Phoenix Fire Army. She pretended to not be wavered and continued to plan the next step of the assassination plan, but is surprised to find that the target is just by her side. In the end, Tang Ziyan along with the envoy work together to defeat the Phoenix Fire Army, quelling a scourge and returning peace to Beijing....

Lin Xiyu, Lin Leyao, and Leng Ying are members of a special agent team codenamed "Blossom on the Other Shore." The three of them are sent to a remote and forbidden mountain area to rescue a missing archaeological team. After successfully rescuing the team, they are unable to return to the surface and are forced to enter an ancient tomb in search of an exit. To protect the artifacts for further study, the mechanisms within the tomb are activated. Despite Lin Xiyu's efforts to rescue them, the archaeologists still perish inside the tomb. Lin Leyao sacrifices herself by giving Lin Xiyu the only chance to escape, while she remains trapped inside. Lin Xiyu and Leng Ying leave the ancient tomb with a white jade pendant, only to discover that it is one of the keys to the legendary "Space-Time Device," along with a black jade pendant. With both pendants, the "Space-Time Device" can be activated to traverse through time and space. Initially intending to find the device to rescue her sister, Lin Xiyu realizes that her sister is still alive but has undergone a drastic change. Knowing that a great conspiracy lies behind these events, Lin Xiyu resolutely steps into this mysterious affair in order to save her sister....

Duan Ruonan and Fan Xiaowei were once inseparable friends. When Xiaowei was betrayed by her scumbag boyfriend, Ruonan brought her to live with her and her boyfriend. Little did she know that the three of them living together would lead to a taboo romance between Xiaowei and Ruonan's boyfriend, Li Xiao. They carried on a secret affair behind Ruonan's back, until their emotional entanglements finally surfaced on Ruonan and Li Xiao's anniversary. Their once close friendship quickly turned sour, and Ruonan left heartbroken. However, their joy was short-lived. As the passion between Li Xiao and Xiaowei faded, Xiaowei's extreme lack of security began to manifest as near-obsessive control over Li Xiao, leaving him feeling suffocated. In an unexpected twist of fate, Ruonan and Li Xiao met again, and the three of them were once again intertwined. Tired of Xiaowei's control, Li Xiao rekindled his old feelings for Ruonan and broke up with Xiaowei. Xiaowei blamed everything on Ruonan and joined Ruonan's new company to plot her revenge....

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