Yamato, a young man in the boy's high school named "Jigen", is the most introverted student in his class. He rarely talks to others and is met with all sorts of people meaning to do him harm. With only his wits to survive, he walks home one day from his school. He is met with a strange light outside of his home.He falls asleep. Once he opens his eyes, he believes he has been transported to another dimension. In the Kingdom of Usko, the world is a very different place than the one Yamato knew. Demi-humans walk the streets and magic is in the air. How will he fare when he is put up against the edge of a sword.