A car accident on a rainy night changed the fate of trainee prosecutor Cheng Ziqian and trainee lawyer Wen Yutong. At the moment of collision, the shell fragments exchanged in childhood burst out with strange light, awakening the mysterious precognitive ability in their bodies - Cheng Ziqian can foresee the moment of death, with a bloody countdown accompanied by severe heart palpitations; Wen Yutong captures the fragments of the event, and the burning sensation in the retina follows him. What's even more surprising is that the crescent-shaped birthmarks on the inner sides of their wrists quietly turned red and revealed shell patterns, which seemed to tell the story of the bond that spanned the years.
Looking back to the past, on a summer night beach in 1998, 7-year-old Cheng Ziqian saved Wen Yutong from drowning with a luminous shell and received a shell engraved with "Forget Me Not" as a gift. That night, Cheng Ziqian picked up a mysterious pocket watch engraved with "LC", but he didn't know that it was a key prop for the villain Lu Chenzhou's family's supernatural experiment twenty years ago. Destiny has taken a turn, and the story continues twenty years later with entanglements.
Since then, they have been involved in eight treacherous cases: the murder of a wealthy family's inheritance in a secret room, the poisoning of campus nutrition meals, the abyss of online loans behind the live broadcast... Each case hides the political and business interests controlled by Lu Chenzhou. On the way to find out the truth, the two relied on each other and took turns to rescue each other. Cheng Ziqian fell into the sea of fire to protect Wen Yutong, and Wen Yutong also used his foresight and wisdom to awaken him from the maze of memory. And Lu Chenzhou, a high-ranking law firm partner, used all means to obstruct the investigation in order to build a business empire, and even tried to snatch the shell and cut off the connection between the two people's abilities.
When the final trial came, Lu Chenzhou activated a bomb in the courtroom in an attempt to kill both of them.
