Thousand Realms Flashback: I Awakened the Day Before the World Was Destroyed

The world is about to be destroyed. Not a natural disaster, not an alien, but—— "The gate to the realm opens, thousands of races invade, and the rules collapse." Lin Mo awakened his only ability just before the world's demise: Go back, but not back in time. But—— Every time the world reaches a "death ending", he will return to an earlier node with "the power and knowledge he has mastered". Price: Every time you turn back, the world becomes more dangerous The enemy will "vaguely remember him" The real being behind the scenes is observing him