Majutsushi Oufen Hagure Tabi: Majo no Kyuusai-hen

Orphen and his sister-in-law Azalie are genius sorcerers. They are both studying at [Tower of Fangs], a prestigious training academy for sorcerers. One day Azalie performed a forbidden ritual, transformed into a terrifying monster, and disappeared from the [Tower of Fangs]. Orphen left [the Tower of Fangs] which had tried to erase Azalie’s existence. Orphen then sets off on a journey to find Azalie.