Fairy Tail Episode 138 -

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

: 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 . Fairy Tail Episode 138

The episode focuses on the various teams' efforts to retrieve the scattered parts of the "Infinity Clock" before the Legion Corps can claim them . of Fairy Tail , titled "The Course of

focuses on the operation to defeat the Dragon God Viernes . The episode focuses on the various teams' efforts

: This episode premiered on July 7, 2012 , and features a new opening and ending theme for the season . Distinction from Manga

occurs during the Oración Seis arc and features Natsu and Wendy finding Jellal .

: During the battle, Byro reveals critical information regarding the true purpose and nature of the Infinity Clock, indicating that the arc is moving toward its climax .