A regular videogame nerd is reborn in the world of Final Fantasy 16. It was the one game in the franchise he had yet to play and he had been avoiding its spoilers like the plague before he got a copy of his own. 

He was born as  Joshua's twin, the youngest Rosfield sibling, and unlike his brother, he was neither the Pheonix's dominant nor had its blessings. However when his family is betrayed and his siblings seemingly dead or missing he would have to step up to to protect his people. And maybe, even save the world along the way. 

An: OK so for context, MC only knows that he is in a world from Final Fantasy because of certain things present in all Final Fantasy worlds like Chocobos, moogles, and whatnot. He knows next to nothing about the plot just that some apocalyptic shit is going to go down eventually, because you know, it's a world from final fantasy.