Through the journey of zombie doom, look for the sunshine on the road. Get on the last bus in the doom.
Recruit mercenaries to arm yourself with powerful weapons. Pay anything to survive and break through levels crowded with zombies.
Do anything you can do to move on! In this dangerous world, for survival, how far can you who are protected by mercenaries and your partners go?

Features
-Variety of mercenary partners bring you brilliant game experience
-Bus upgrade system and mercenary upgrade system
-Various characterized zombies for testing your brain