Remu and Yoichi, colleagues dating and nearing marriage, face a twist when Remu’s ex, Odagiri from sales, insists she join him on a business trip. As the trip’s document preparer, she agrees. They once loved deeply, and Odagiri shows her a video of them fucking in the director’s office! Engaged, Remu wants no ties with him, but he secretly spikes her wine with potent aphrodisiacs and books one hotel room. He ravishes her seductive body. Though she begs him to stop, her body burns, nipples and pussy hypersensitive, mind blanking. They fuck all night, her taking more aphrodisiacs. When she passes out, he photographs her and sends it to Yoichi, who arrives too late—Remu’s incoherent. For a while, Remu sits silently, speaking to no one. Yoichi cares for her in the hospital, but one day, she vanishes. Though dreading it, he goes to Odagiri’s, and opening the door, his hopes shatter...