Chisato sells homemade bento from her garage and is known for her delicious cooking, attracting many regular customers, including Kashiwagi. As they saw each other daily, Kashiwagi fell in love with Chisato. Their senior colleague Tsutsumi pretended to encourage Kashiwagi but actually instigated him to rape Chisato. He secretly filmed the act, blackmailed Chisato, and planned to use the sex video of her and Kashiwagi to pay off his own debts.
