Zombie Girl Side S - Sister is a game where the two sisters are heavily wounded by a zombie attack, and you need to raise them to a healthy state in order to save them. Raise them to a healthy state by feeding them, and make them stronger by using items that you find in the world. When they are healthy, you can choose to help them with their day-to-day life and help them in finding a new job, and you will be rewarded for your help.

You need to feed the zombies that are after the two sisters and make them stronger by using items.