On her way home from club activities, Mao notices a ringing cell phone in the roadside shrubbery and picks it up out of curiosity. It belongs to someone who asks her to deliver it to a specified address. Upon entering the room, Mao is offered tea, but soon loses consciousness. The man takes advantage of her kindness, drugging and confining her, then assaulting her pure young body. As he relentlessly toys with her genitals, Mao experiences pleasure for the first time, gradually having her mind and body dominated by the man...