Yukino works at an advertising agency she has always admired. When she first joined the company, she hated a colleague, but as she worked overtime with him, they quickly became close, and they finally crossed the line. She was so obsessed with him that she ignored his calls, even though she was still in the office late at night when no one was there, and she climaxed while being repeatedly creampied by her colleague's dick... She had many chances to return to her fiancé, but her sensitive body yearned for her colleague. The impure love between the two continues until the morning. The worst betrayal NTR in history.