No one helps in the cage! Yui Hatano's female prison bondage work with Mion Hazuki as a special guest! Yui was betrayed by a friend and put in a female prison. She was tied up by the boss of a female prisoner and turned into a hornworm, and her body was pressed ... In the punishment cell, the guard was attacked after the toilet and committed. Even so, Yui who escaped from the prison tries to take revenge on the betrayed companion and the virtue branch chief ...