Sorcerous Stabber Orphen

Azalie, Orphen's best friend who had helped him get through the prestigious magic school, The Tower of Fang, has some connection with the beastly dragon, the Bloody August. To uphold the magic school's reputation, the dragon must be destroyed—but Orphen isn't about to let that happen so easily, for this beastly dragon is Azalie: she had been transformed due to tampering with something with which she shouldn't have tampered. People whom Orphen thought were his friends suddenly seem as though they are enemies in the race to get to Azalie first. Orphen leaves the school, furious with the fact that they want to destroy his best friend. He sets out on a journey to find and save her with his apprentice, Majic, and a woman who holds one of the key items in her house, Cleao.

Sorce: http://en.wikipedia.org/wiki/Majutsushi_Orphen