Did He Destroy the World? !

A poster that speaks volumes. After winning the game competition, Chen Chen woke up and found that the world was destroyed in "loss of existence". A chase, a crime. Soldiers broke into the door, and the customized poster of the champion became irrefutable evidence - "He destroyed the world?" An awakening, a glimmer of hope. In a desperate situation, Chen Chen was able to "deflect cause and effect", causing bullets to lose recoil, directing fatal attacks elsewhere, and even causing monsters that swallowed "existence" to annihilate themselves. A doomsday, a big gamble. The doomsday is the battlefield, and Chen Chen is forced to survive in the cracks to find the truth behind the "loss" of the world. A time travel, a choice. The "results" of the future can actually affect the "causes" of the present. Why did the current timeline cause a disaster that should have happened in the future? Who are the people of the future? How will Chen Chen use his body as an anchor to deflect the doomsday?