A cute and innocent girl named Mariko Ueshita finds herself caught up in a perverted plan she didn't expect! Despite being surprised by the different filming conditions than what she was told about beforehand, Mariko bravely answers her director's devious questions while he teases her on the building's outdoor staircase. As they wait around, a frustrated actor can't hold back any longer and impulsively penetrates her without protection - giving her an intense orgasm due to the unique sensation of 'real skin'. They move to another studio where staff members watch in amazement as their cum fills up condoms during check-in photoshoots. Despite trying to escape this unwanted attention, our helpless heroine gets repeatedly penetrated both front and back until she's covered in sweat and moans uncontrollably under the waterfall of pleasure.