Holly Smiles at The End

"Did you know? That 8 to 26 years ago, Gadreel (The Demon made of Neon) escaped Hell by using an archangel's key? Did you know, that the only way of getting it back, is to play her game?" You are a Master's Student in Math. As a part time job, you work in a fashion boutique. But after some incidents, you find a tape that puts you to sleep, something you have had a hard time finding as of late. {From F95Zone]