The Fight Between 4 System Owners

In a convenience store on a winter night, in order to save his sister who was suffering from a strange disease, Lin Ye bound the "Time Sequence Fragment" system and got involved in a four-player hunting game. Each of the four possesses a system with a fatal price (Shadow Blade, Memory Thread, and Molecular Microcontrol). They must fight each other within 30 days. If they do not kill for 72 hours, half of their life will be deducted. He relies on going back in time to survive, but he is struggling between protecting his sister and being forced to kill - the prey is also the hunter, and every step on the snowy night is on the line between life and death.