Tsubomi is relentlessly molested by a group of men on her usual commute to school. They take away her movement and play with her body and genitals. Even though she desperately resists, she cannot withstand the lewd stimulation of the men with erect penises surrounding her, and she humiliates with orgasmic convulsions! Before she knew it, her fear gradually turned to excitement... She is covered in the men's semen on the train and sinks into pleasure...