A beautiful girl (20) forced into a school uniform cosplay takes on a gangbang. She resists, saying "I told you not to cum inside..." as this becomes etched into her memory as a dark history of her youth. Viewers will get excited by her pained expression and voice of refusal. The story depicts her gradually losing her composure from initial shyness, and in the end, her dark history is complete. This work is adult-oriented, and all performers are adults aged 19 or older.