Fairy Tail (2009)

Season 2: Episode 46

Out of devotion, Pantherlily refuses to accept Mystogan's plan, but they soon find that Natsu, Wendy, and Gajeel have captured King Faust and begun a riot. When Mystogan confronts Natsu and defeats him, Mystogan is revealed to be the Prince of Edolas to the people. As the reversed Anima takes all the Earthland mages and the Exceed to Earth, everyone says their goodbyes while Mystogan remains behind, heralded as the new leader of Edolas.