Reborn in a Doomed World: The Duke's Heir's Twenty-Year Countdown

Lin wakes up in the worst possible scenario—transmigrated into a Western fantasy novel destined for a "Hell Ending" where everyone dies and meets in the afterlife. As the sole heir to the Empire's legendary Lionheart Duke, he's blessed with status, power, and resources. But there's a catch: he has exactly twenty years before the Immortal King annihilates everything. Armed with complete knowledge of the plot, Lin must play the reluctant savior, exploiting every loophole and bending fate itself to rewrite humanity's doomed finale. Can one reincarnator with insider knowledge turn a guaranteed apo…