Obscene Plot 1 - Slutty anime slave is tied up and roughly dildo and ass fucked

Ryuudouji Shimon no Inbou / Ryudouji Shimon's Indecent Conspiracy - On a day four years ago, a man named Ryuudouji left his job of a science teacher. Confined to a small apartment he quietly lived out his life in hiding. One day a recruitment letter appeared for a prestigious private school famous even in Tokyo. Doubts and concern swelled within Ryuudouji as he considered entering work again but he decided to take the chance. Once he found himself at the school the director was none other than Sayaka Ryosaki, a teacher that worked in the same school as him long ago. She had a proposal for Ryuudouji... Sex Slave Development Program - were the words that left her lips. Taking girls of beautiful appearance and making them the ultimate sex slaves...