Lin Xia was reborn and returned to the interview day of Bureau 749 in 2019, with the memory of his death in the laboratory explosion, but when he joined the company, he discovered that the interviewer was "Clone 001" who was supposed to be dead. In the autopsy room of the underground headquarters, the ancient corpse with the same appearance, his melting colleagues, and his future self flashing in the mirror gradually revealed the truth about Bureau 749 as the "reality firewall" - he was actually clone No. 13, Tasked with breaking the cycle of time and space. When the Big Dipper turns into a genetic key, and when every reflection in the mirror is his self in a parallel world, he must travel through magnetic storms, dreams and mechanical ruins, and fight against the "observers" who use human civilization as an experiment, only to discover that rebirth itself is the starting point of a larger conspiracy...
