focuses on the operation to defeat the Dragon God Viernes .
of Fairy Tail , titled "The Course of the Holy War" ( Seisen no Yukue ), is the 11th episode of the Key of the Starry Sky arc , an anime-exclusive filler storyline . Episode Summary Fairy Tail Episode 138
: This episode premiered on July 7, 2012 , and features a new opening and ending theme for the season . Distinction from Manga focuses on the operation to defeat the Dragon God Viernes
: Mirajane Strauss enters a fierce confrontation with Mary Hughes . To win, Mirajane utilizes a powerful, serious form— Satan Soul: Sitri —which is noted by viewers as one of her most formidable transformations . Mirajane utilizes a powerful