An open-minded, sociable young man, Theos Martin. He possesses all the qualities of an exceptional person in an ordinary world, for as well as being gifted at video games, he has a vast knowledge of anime and is strong and intelligent. If you ask him about himself, that's the answer you'll get from those around him.  His destiny is turned upside down when a goddess appears and reveals to him that he is the hero who must save the world from the threat posed by the Demon King.  To do so, he must leave his own world and travel to another, but not everything goes according to plan.