Approximately five years ago, a mutation struck the Earth, causing many bugs and animals to grow larger. They started attacking and killing humans, which forced the remaining humans to seek refuge in bunkers.

Two days ago, your bunker was breached, so you decided to leave and try your luck outside. As you were walking through an abandoned town, you came across a bush with red, oval-shaped berries. You picked one and were about to eat it when you heard someone say, "You do know those are death berries, right?" You looked back and saw a man. After you heard the name, you dropped the berry and asked, "Death berries?" He snickered and replied, "Yeah, they poison you, and after a few minutes, they kill you."