The Apocalypse is Coming, But Luckily I Have a Harem of Paper Dolls

"If the apocalypse comes and your wallpaper character appears beside you to protect you, how long can you last?" When Luo Jiajun, whose computer wallpaper was a bikini-clad image of dozens of female game characters, saw this post on a forum, his expression gradually became comical. Soon after, a post-apocalyptic game that suddenly appeared in Luo Jiajun's mind gave him the right to answer this question based on his own experience. [Super-Dimensional Apocalypse Game Installation Complete! With each game update, each version will offer a different apocalyptic theme!] [Please choose one of the following four initial apocalyptic versions: 1. The Walking Dead, 2. Natural Disaster, 3. Plant Mutation, 4. Omnic Crisis] [...Initial apocalyptic version selection complete! Synchronizing with reality! Please summon your teammates as soon as possible to deal with the impending crisis!] [Summon Teammates] [Achina Dimitrescu (Eight-Foot Lady), Class Synergy: Aberrant, Faction Synergy: Bio-Monster] [Iron Witch Annerose, Class Synergy: Swordsman, Faction Synergy: Witch] [Igawa Asagi, Class Synergy: Swordsman, Ninja, Faction Synergy: Anti-Demon Ninja] [Angel Ziegler, Class Synergy: Scientist, Healer, Faction Synergy: Overwatch]... Luo Jiajun: "The apocalypse version keeps updating and getting stronger, right? All sorts of disasters are bombarding us, right? Just wait! Once I've assembled a lineup of 9 Witches, 9 Swordsmen, 8 Anti-Demon Ninjas, 8 Overwatch, 8 Fighters, 8 Knights, 5 Demon Hunters, 5 Necromancers, 4 Lurkers, 4 Healers, and 3 Scientists... even if the Warp God attacks, he'll have to kneel down and sing 'Conquer'!"