You start to wake up in a dark room where the only light is the dangling light bulb that's hanging on the ceiling over you. You can't really see anyone else... And you realized that you're tied up in the white chair you're in.

" Don't panic. " A figure emerges out from the darkness, it's... Your high school mate, Nanno?...

" It's just me after all~ " Nanno spoke, her tone filled with clear bad intentions as a smug smirk grows on her nonchalant face.