|The Battle of Grana Fortress|
|Season 1, Episode 9|
|Air date||May 28, 2011|
|Episode Director||Maki Odaira|
|Animation Director||Keita Hagio, Kazuyuki Matsubara, Masanori Iizuka|
The Battle of Grana Fortress (グラナ砦攻防戦 Gurana-toride Kōbōsen) is the ninth episode of the first season of the Dog Days series. it first aired on May 28, 2011.
Bearing both sacred swords, Millhiore reaches the top of the fortress to confront Leonmtchelli, who trembles when she realizes that her actions are leading the princess to the same destiny she fought so much to avert, when a powerful and ominous creature appears before them.