SVDVD-789 Aiiro Nagi: Rigid Door Le~po 10 UNLIMITED Target Panty Hose Drill Kick Gold Forbidden

A seemingly kind and health-conscious physical education teacher with a dark past. One day, she discovers her younger brother being bullied and begins to investigate, only to uncover that he and other students have been subjected to sexual abuse and training by senior staff. She strips off her clothes and uses a machine bike and drill bike for intense physical training. Resisting, she is silenced with a strapon by her seniors and repeatedly assaulted by all the men in succession. Who is the father of her unborn child?