I Became Final Boss

Fifteen years ago, John transmigrated to Blue Star—a world identical to Earth in every way, except for its name. To everyone else, John was just an average man living a quiet life. But every time John slept, he entered a game world known as the Dao World that felt more real than reality itself. The dream world was a vast cultivation landscape governed by ancient Taoist laws, and John wasn't anybody; he has ability of infinite resurrection in dream, whenever he died, he would wake up in the real world, and when he slept next time, he would start the dream where he had left off With no competitors and the ability to "respawn" after every dream-death, John spent fifteen years relentlessly advancing. He broke through the shackles of mortality, transcended the laws of physics, and finally achieved the legendary Godless Realm. Known across the heavens as the Sage Emperor, he stood at the absolute peak of existence. Then, the "Game" officially launched and became Reality. The sky over Blue Star shattered. A cold, mechanical voice echoed in the minds of billions: [System Initialised: The Great Migration has begun.] [Target World: The Primordial Realm.] [Quest: Slay the Tyrant!] [Description: The Sage Emperor has achieved Supreme Authority. His reign is tyrannical and must be ended. All citizens of Blue Star are drafted as ‘Heroes’ to liberate the world.] John froze. Billions were chosen. His family. His friends. Every human on Blue Star. All granted power. All promised rewards. All sent to kill him. To survive, John makes the only choice he can— He accepts the quest. To kill himself. But as the System tightens its grip and the line between dream and reality collapses, one truth becomes clear: The world thinks it’s hunting a monster. But they have no idea… They’ve awakened something far worse.