Start a Doomsday Survival System

Iwai had a dream before, He dreamed that a biological crisis broke out in his school, and only five people in his dormitory were alive in the school. However, when the zombie virus suddenly arrived, there was no one around him. The autumn wind is bleak and the river breeze is blowing The real fear comes from loneliness. He was alone in the corner, shaking. Sudden! He was struck by lightning. He looked at his hands with a dull look on his face. Drop! The apocalyptic survival system is activated! So, Iwai turned into a super hoarder rat, called him, and started farming, mining and hunting with his friends, and began the life of a fat house in the apocalypse. "The first step... Let's start by collecting supplies!"