Beginning with the prince, a skilled and brave warrior who has spent much of his life defending his kingdom. Sadly, he dies while attempting to cross a mighty river, and his soul ends up getting swept away to an unknown destination.

Little does he know that he has been transported to the modern world, a strange and foreign land unlike anything he has ever seen before. Now, he must find a way to adapt to this new environment and somehow return home.

"....? Who are you?"