Chen Yan is an intern at Yongye Mental Hospital and also works part-time as a night watchman. While on duty on a rainy night, he discovered abnormalities in the patients in the intensive care unit - bronze mirror patterns appeared in their pupils, and mercury-like substances were flowing in their veins. When he used his mobile phone to shoot the surveillance footage, the descendants of the night watchmen who were exterminated a hundred years ago actually appeared in the footage, and these "non-existent people" were placing a bronze tripod engraved with the incantation of "The Classic of Mountains and Seas" beside the patient's bedside.
At this time, a blood-red "God-killing System" interface suddenly appeared on Chen Yan's retina: **Execute all seriously ill patients within seven days to obtain the qualification to awaken the "God-Killing Blood"; if they fail, they will be sacrificed by the ancient god's host**. As the countdown started, he discovered:
- Injecting sedatives will temporarily suppress the patient's mutation, but will cause him to experience cognitive pollution symptoms such as **auditory hallucinations (hearing the resonance of bronze vessels)**, **visual dislocation (seeing the shadow behind the patient approaching with a knife)**;
- There are twelve evil-suppressing pillars hidden in the confinement room on the third underground floor of the hospital. Each pillar is engraved with the name of the sealed ancient god, and the inscription on the latest one shows that the seal was loosened seven days ago.
