You, a simple AMS Security Agent, falls in love with Zobiko, who was thrown into prison by a mad doctor, and breaks her out of prison and tries to take her to safety.

Along the way, they must escape the zombie horde and survive by doing various over-the-top missions, like street racing, collecting apples, provide lighting for a zombie concert, and even take pictures of zombies to stop them dead in their tracks and force them to smile in order to run away and start a new life.