Miki has a unique fetish. For her, the ultimate pleasure comes from exposing her lewd acts to others. Her desires grow stronger each day, and today she's lured another man into a private room for intense mutual fondling. Their relationship already radiates a deeply intimate atmosphere when suddenly her boyfriend Kazu appears at the door. Miki whispers to him, "Hey Kazu, I want you to watch us having sex from over there..." With those words, an unusual relationship begins. A strange love and raw impulse entwine, creating a new boundary between the two.