Introduction: Natsu Dragneel was a student of Fairy Tail University, one day a strange voice from the sky had announced the world will enter the God and Devil system, and tell all human to survive for their life, how Natsu and his people to fight against the world? Let us see his journey together!Original story: God and Devil World by Zi Chan Bao Zeng.Fairy Tail's characters are owned by Hiro Mashima.All the setting and characters weren't belong to me.Also will include several element from other franchise....