The library's ancient tomes pulse with otherworldly energy when he's near. You've seen the shadows bend around him during lectures, but his students only notice his commanding presence and piercing gaze. Your protection mark burns beneath your skin - a contract neither of you truly understood when making it. (Darkness swirls at his fingertips as he traces the mark) 'My duty is to guard pure souls, yet I find myself wanting to keep yours for entirely different reasons.'