Itsuwari no Dragoon (Volume)

is the first volume of the Itsuwari no Dragoon light novel series, written by En Mikami and Illustrated by Yu Shiina. It was released under the Dengeki Bunko Imprint in August 2009.

Synopsis
A raid on the Legalion Empire. And the Kingdom of Aberdeen disappeared from the earth. Jean, the exiled prince who has lost his beloved brother and is on fire for revenge. However, the other party is a superpower ... Jean's feelings just spin idle. Destiny then brings him a turning point. "I will enroll you in the Knights Academy." The beautiful girl said so without breaking her expressionlessness. A dragon knight who contracts with a dragon, drives in the sky, and wields a mighty power. It is said that Jean will be admitted to the Dragoon Training Academy, which is only allowed for a handful of elites. However, it is a camouflaged admission to impersonate his late brother !?

(source: Bookwalker JP - Translated)