Kaihouku Chikan Harem

A female teacher was browsing a shady site website and saw one of her student in a lewd video, One of the student proves that it was Marina, Teachr Shiori follows her from school into the train where she sees Marina being molested by a group of men. Shiori's attempt to save Marina fails and the molesters now have one more beautiful woman to play with. What she didn't know that Marina met the guys in the website for a train sex videos