The female college student, Tsubomi, used the train for commuting. She never thought she would encounter a pervert on that train... With Tsubomi remaining silent, the pervert escalated. The man she thought would help her was also involved, and she was taken to a warehouse and raped. The pizza delivery address turned out to be the pervert's house. Recruiting accomplices, the perverts became a group, cruelly forcing Tsubomi into a brutal internal ejaculation gangbang as she tried to escape. The runaway impregnation pervert train won't stop...