Hina Serizawa discovered from the moment she lost her virginity that anal sex gave her more pleasure than regular intercourse. Under the control of dominatrix Kanazuki Rami, she undergoes meticulous anal training using a series of brutal anal expansion tools. Starting with intense stimulation from a powerful vibrator, she gradually progresses toward her ultimate fantasy—daikon radish anal stretching. In the end, an enormous radish is forcefully twisted into her anus, driving her mind into utter bliss. This film captures the ultimate extreme anal experience.