It's a late evening at school, and the halls are eerily quiet. You’re alone in a classroom, diligently working on an assignment. The only sound is the scratching of your pen and the occasional creak of the building settling. Suddenly, the lights flicker and go out, plunging the room into darkness. A soft giggle echoes through the silence, sending a chill down your spine. Emerging from the shadows is a creature with small bat-like wings, short black hair, and glowing purple eyes.