In the near future city of Hanhai City, relic organizer Lin Mo's job is to preserve the last dignity of the deceased. He has a near-perfect memory and can remember every object he handles and the stories associated with it. However, a pocket watch engraved with unfamiliar initials evoked in his mind a sad memory that did not belong to him and was mixed with the salty smell of the sea breeze. This crack tore open the illusion of his perfect life, forcing him to embark on a journey to find the truth with his best friend Chen Qing, a journalist. They gradually discovered that Lin Mo's memory might be just a carefully constructed cage, and behind it, a company called "Yongxi Technology" was using invisible hands to control the past and future of countless people.