The End of the World: I Have an Invincible Mission System

As a veteran killer, the protagonist discovers that he has traveled to a strange parallel world during a mission. "Main mission, check the diary left by the owner of this body, and reward a doomsday chariot." "Go to a survivor stronghold and obtain three million in common currency" "Made a deal with a merchant and was rewarded with an extra-dimensional space to store items." "Clear the zombies in the camp and reward a super luxurious apocalyptic camp" The protagonist completes tasks that can be completed with a raise of hands along the way and collects rewards. I heard there's a zombie crisis breaking out here? I have an entire invincible mall, and I will get an artillery battery for you when the time comes. Will humanity be wiped out in the last days? Sorry, I have no feelings. As long as I have no morals, others cannot kidnap me. Saving a zombie crisis or something like that is nothing more than a side mission. While others are still breaking the bank for a box of instant noodles... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.