The world is desolate and bleak, the people who once inhabited the land have hidden themselves or passed away, but for those who live their hopes are within the hands of a single person who fights for their freedom. The man considered to be the strongest man alive, the man who rules over the dimension, is put up to a difficult task of taking down a powerful opponent who he once considered a friend. He finds himself in a dire position where his life is soon to surely end when he's suddenly saved by a girl with long blonde hair. The whole reason the world is tainted by darkness and in ruins is because of her, and yet she offers her hand to save him and the world, and for what reason? "Of course, because no matter what, I'm the protagonist!"