Sakura Yuzuru, a busty high school girl who was completely abused by a group of perverts, is T-3800064.

On their usual commute to school on the train, two busty beauties in the same class, Yuno and Hina, are relentlessly harassed by a group of perverts. They are denied any chance to resist, their bodies and genitals subjected to wanton fondling. Despite their desperate resistance, the lewd stimulation of being surrounded by erect penises eventually overwhelms them, causing them to convulse in humiliating orgasms! Fear gradually transforms into excitement… They are drenched in the men's semen on the train, completely immersed in pleasure…