The tram became a place where rapists operated. Kana Yume got on this train and didn't pay attention to everything around her. But Kana Yume's way of dressing caught the attention of the rapists and Kana Yume became a victim of their rape. At first, she resisted, but gradually felt a sense of pleasure to turn her into a lewd slut.
This series mainly fucks each other as the main one, there are very few subs, just let you know, but if you fast forward, you won't see any subs :D.