Bored with her late-night study session, young student Yumi can't help but let her mind wander, her fingers straying from her textbook to her panties. As she tentatively touches herself, her breath hitches, her nipples hardening under her thin blouse. She bites her lip, her imagination running wild with fantasies of her professor, his deep voice echoing in her mind as she rubs her clit faster, bringing herself to a quiet, shuddering orgasm.