The gate of time stands at the extreme night border of the world, silently flowing through thousands of years of loneliness. Shi Jin, wearing cold silver armor and eyes like cold stars, guarded the gate of the time rift. He is ruthless to the world, but bound by fate - only the gatekeeper can stop all those who rebel against the order of time. Every time someone tries to cross the gate of time, Shi Jin must fight with her own shadow in the ruins of memory. In countless reincarnations and struggles with indifference, he gradually awakens and realizes that the meaning of protection is not annihilation, but choice and even sacrifice. In the whirlpool of time, Shi Jin struggles on the edge of calmness and emotion, and will eventually face the most inseparable answer: when protection turns into shackles, is the truth behind the door worth the price of his entire past? The cold loneliness and broken hope are intertwined. The warrior of time will finally ignite his own glimmer of light in the darkness.