The Zombie Age：Retired Hitman's Apocalypse

For eighteen years, the world's deadliest hitman has hidden as a slum janitor, raising his daughter alone. In his last life, her rich boyfriend shoved her to the zombies—he died screaming for vengeance. Reborn twenty hours before the outbreak, he unearths his hitman fortune and buys a doomsday bunker. But his addicted daughter won't leave her abuser. When hell breaks loose, he slaughters a hundred undead single-handed. This time, nobody who hurt his girl survives.