narrow attic room. Student Yamamoto was breathless at the sight he saw peeking through the gap. His mentor, Takabayashi's second daughter, Masako, and Takabayashi's right-hand man, Tanizawa, were intertwined like beasts. If you think about it, ever since Yamamoto came to stay at Takabayashi's residence as a part-time worker, the eldest daughter Reiko and Masako's mysterious gazes were intertwined in the residence. Meanwhile, Yamamoto finally cannot control his desire and turns Reiko into his object...