I Deliver Express in the Last Days

[Wasteland + System + Humor] When the end of the world comes, humans build Central City, which is called the world's last utopia! "Ding! Congratulations to the host for binding to the apocalyptic express delivery system!" "The high-level mission begins: send the serum to the zombie king's lair. If the mission fails, the host will be wiped out!" Zhou Yan, the courier boy, threw his motorcycle angrily: "A dog system is no match for a human being, so I quit!" What, the mission rewards god-level skills? Healing elixir? Super weapon? ! Zhou Yan silently helped up the motorcycle: "I think I can hold on a little longer."