The Dark Mage's Theory of Happiness

This is the Royal Magic Academy, where talented humans learn and study magic in order to fend off monsters. This particular class has a rather talented dark arts magician. He’s determined to graduate at the head of the class, and enter the sacred knightly order. However, his female classmates try to seduce him at every turn. Will he stray from the path, and give in to pleasure? Or will his dreams of knighthood be fulfilled?