Trained in the arts of killing I was sent to japan in a mission to reinforce my countrymen. When the war was almost over I was shot by an enemy and died but a robotic voice spoke and gave me the Training System and reincarnated me in a fantasy world there I was rescued by a beautiful girl who I soon fell in love with. From her I learned that I was reincarnated in a world where humans form guilds to fight the zombies that came from the dungeon that suddenly appeared a 100 years ago.