SNIS-912 Female college student Riku Minato who was completely tied up and forcibly raped

Riku is an excellent university student with enough talent to win an award at an art exhibition, but his father's small factory has gone bankrupt, and he is unable to pay his tuition or even make a living. - Just as he was thinking about getting into the water business due to his parents' debts, he was invited by Odagiri to offer a high-paying part-time job and visited Tabuchi's mansion. - ...And then, she is trained in bondage and awakens to her perverted sexual love.