No one will help me in this cage! I'm just going to be violated... A special guest, Miyabi Hazuki, joins Yui Hatano in a women's prison bondage work! Betrayed by her friends and sent to a women's prison, Yui is bound by the boss of the female prisoners and turned into a caterpillar, forced to submit to her body... The guard violates her after using the toilet in the punishment cell... Even so, Yui, who escaped from the prison, tries to take revenge on her traitorous friends and the corrupt branch manager...
