Apocalypse: Galagiwood Gets Stronger, Starting with Married Women

[Invincible protagonist] [Zombie apocalypse] [A huge cast of female characters] [Decisive and ruthless] He transmigrates to the world of Garagademu, only for the apocalypse to break out and zombies to run rampant! Starting from the start as a low-level security guard, he's trapped in the security office with the campus beauty heiress. The System wants him to bind himself to a widowed wife? Complete missions to get stronger and gain all sorts of supernatural abilities: a nuclear-powered kidney, hypnosis, time stop… He goes straight to the pinnacle of life in the apocalypse.