Aspiring young detective Xiang Li Xiqi takes on the case of a stolen research paper at school. With help from his friend Ren Shirou, he investigates a web of clues and classmates’ suspicious actions. As doubts rise, Xiang must rely on his sharp instincts to uncover the truth and prove himself.

In the 1960s, Guo Xiaolu and Su Lingfang met for the first time. They should have grown up together because of an accident. The never-arriving letter allowed the two to embark on a different life trajectory and opened the fate of a lifetime. The reunion after a long absence coincided with the prosperity of the two. Ding Mengmeng (Li Tingting), Wang Xiaomo (Wang Xiaokun) and Wang Qingwei (Xu Weihao) were also accompanied by them. As the years passed, the fate of a generation was ups and downs in the torrent of the times. After Guo Xiaolu reunited with Su Lingfang after life and death, they made an unexpected choice.

A battle of a ferocious gang against a hunk-turned pacifier! The entire Special Ops Team was annihilated due to Zhou Yong's mistake. He felt guilty ever since. One day, two children knocked on his door. They were actually the children of the late Special Ops Team Leader, and Zhou Yong was forced to take care of them. The gang that they had engaged before are approaching Zhou Yong and the children for their revenge. With burning anger inside his heart, Zhou Yong plays a cruel game of survival with the approaching gang.