Unbeknownst to the world, aliens have begun to invade people's bodies. A young race car pilot named Toshio was recruited by a mysterious organization for a "test" in exchange for money. That test turned out to be hellish training to become a Zombie Hunter. However, Toshio decided to return to a normal life but soon faced the harsh reality of being a Zombie Hunter. Surrounded by shallow figures and aliens, Toshio accepts his new life as a Zombie Hunter ...