Apocalypse's Antagonist

Shi You lived his first life as the villain of a zombie apocalypse, losing again and again to the kind hero Li Suoyun until his own men betrayed him, then lingering as a ghost to watch his rival's happy ending. He wakes up on his twenty-fourth birthday, hours before the Doomsday Game turns most of humanity into zombies and life into levels and stats. Armed with memories of the future and an evolving saber called Frost Jade, he vows to grow stronger and kill the protagonist.