School girl Sheril gets handcuffed in her sleep

Cute school girl Sheril is studying very hard, but she just doesn’t understand this subject. It is boring and way too hard. She decides to secretly take a nap. When she wakes up again, her wrists are locked in black handcuffs. Sheril immediately understands: these handcuffs are not coming off until she is done studying… This will be a very very long day for our poor student!