Rakuin no Monshou XI Akatsuki no Sora wo Ryu wa Kakeru (I)

is the eleventh volume of the Rakuin no Monshou light novel series, written by Tomonori Sugihara and Illustrated by 3. It was released under the Dengeki Bunko Imprint in June 2012.

Synopsis
Orba's army is gaining power. The emperor, who can no longer be overlooked, takes the forcible means of inviting Orba to the imperial capital. On the other hand, the neighboring country, Ende, was approached by the Allion army, an eastern power led by the warrior "Small Overlord" Caseria. Arion's ambition is not limited to Ende, but always extends to Mephius and Gerbera. In the face of the crisis, Orba and Virina, who was injured and returned to her homeland Gerbera, take action!

(source: Bookwalker JP - Translated)