Doomsday Shelter: Everyone Pays Me One Yuan a Day

On the day the red rain fell, Chen Chuan nodded off on the back seat of an electric scooter and awakened the Shelter System.

For every living person he takes in, he gets 1 point a day. Points can be exchanged for water, food, and weapons.

Starting out at a grocery store in the old district, he builds a shelter amid the gaps between waves of zombies.