System Wholesaler: I Wholesale Systems in the Apocalypse

[Doomsday] + [System Distribution] + [Administrator] + [Leveling Up] + [No Saintly Compassion] + [Decisive and Ruthless] + [Mutant Beasts] + [Zombies] Doomsday strikes. Zhang Qianye struggles to survive, and just when he finally finds a place to settle down, he gets betrayed. Given a second life, he becomes a wholesale dealer in Systems. Zombies? Giant beasts? Evil spirits? A frozen wasteland? No need to panic. What kind of System do you want? If you can think of it, I can give it to you. Leveling-up System! Summoning System! Supply System! Anything you can imagine, you can get. You ask what it’ll cost? The price is your submission to me. Obey my will, and join me in conquering every corner of the world! Reshape the order of the Doomsday world!