In 2025, adventure enthusiast Lin Xiao discovered mysterious bronze fragments in the mountains, accidentally opening a time and space rift leading to the 731 Unit experimental site in 194X. He witnessed the tragic death of the experimental subjects under liquid nitrogen and bayonet. Five times of time travel ended in failure. The blood runes swallowed up his will, trapping him in the abyss of alcoholism and self-isolation.
Chen Xiao, an active-duty soldier, broke into Lin Xiao's decadent world and faced the horrifying videos played on a loop, ranging from doubt to shock. When the fragmentary blue light tore apart time and space and dragged him into the hell laboratory behind the barbed wire, the ironclad evidence of radioactive soil, skull badges and frozen torture instruments shattered his suspicions. The two cut the system cable amidst the roar of the alarm. The energy of the fragments was lost, and the rift was on the verge of collapse.
The military quickly intervened, using helicopters and electromagnetic shields to cut off the retreat. Chen Xiao handed over the evidence but kept a copy of the key video. The door to the rift is closed, but the prophecy before the rune mural shattered - "The rift needs two souls to open, and the blood debt must be paid with blood" - hints at a larger time and space conspiracy. Lin Xiao and Chen Xiao, from the ruins of a lonely battle to the whirlpool of the military's undercurrent, were forced to find answers between historical revisions and dimensional crises. Behind the faded blood of the bronze fragments lies a life-and-death game that spans time and space, and the truth is far darker than they imagined.
