SNIS-912 A college student, Minato Riku, was completely bound and raped against her will

Riku is an excellent college student with enough talent to win awards at art exhibitions, but her father's small factory goes bankrupt... She can't even pay for tuition, let alone manage daily living expenses. Struggling with the idea of turning to sex work to pay off her parents' debts, she is offered a high-paying part-time job by Oda-giri and visits Tazawa's mansion… And then, she is bound and trained, awakening to her perverse desires.