Xiao Zhan, the future God of War, traveled through the chaotic era where Westerners and demons coexisted. He was expelled by the sect as a "waste", but he awakened [Demon Subduer Sign-in System]! Bind the future intelligent life soul, sign in and get the prehistoric demon-killing skills and future technological weapons! The real and fake daughter repeatedly plotted out of jealousy, the traitor of the sect stabbed her in the back, and the bully male partner robbed resources? Xiao Zhan acted domineeringly, using talismans to suppress demons, and using technology to defeat conspiracies. The longer he signed in, the stronger he became! Lingxi gradually develops feelings from her cold intelligence, and the two work together to conquer the troubled times: "Anyone who dares to bully me, regardless of whether you are a human or a monster, will be killed!"