At the End of the World, You Don't Sell Supplies but Zombies

[Science Fiction + Apocalypse + System + Rebirth + Not the Holy Mother + Spiritual Resurrection] In his previous life, Xu Yuan was willing to be a licking dog for the goddess "The Holy Mother" under the apocalypse. He eventually died tragically and was reborn before the apocalypse. After his rebirth, Xu Yuan awakened the sales system and became the strongest salesman on the surface. Food? Sell! Clothing? Sell! Drug? Sell! Zombies? Sell ​​the same!