Saimin Ryoujoku Gakuen Episode 1

Kaho and Kasumi are sisters indebted to the yakuza. A student learns of their predicament and decides to pay off their debt for a certain price; they must become his sex slaves until he sees that their debt is clear.

One day, Anna goes missing. Riko, her older sister, looks for her, but she doesn’t know where Anna has gone…. Days later, Riko meets a woman in the town. Her name is Naomi, whose fiance is also missing after he entered a self enlightenment group