Stories revolve around characters. Over the lifetime of the story many characters are introduced and discarded. But there is one character that ultimately controls the flow of a story.. The Protagonist. Yet in most stories there is a character that is set up as the protagonist's equal.. a character who is presented as just as important as the protagonist but overtime is reduced to a side character, a villain or a corpse... What would happen if a guy from our world enters into the body of one such character.. into the body of the one less favored.. into the body of the rival?