I Became Stronger Starting from Collecting Corpses

Everyone thought they were the Chosen One, but only Chen Du knew that these systems knew each other. What's even weirder is that only he can recover the debris left behind after the system dissipates. When others fight, he picks up the corpses, and when others level up, he pieces together the pieces. He pieced together a path to the truth from the wreckage of each system - all systems are letters written by the living to the dead.