Aiko, a female surgeon working at a private hospital in Tokyo, was subjected to a certain human experiment after she disdainfully rejected the physical relationship sought by her colleague, Dr. Sadamatsu, who harbored evil feelings. What was that experiment conducted secretly within the hospital? 'We approach the cervix, the so-called point G, where a woman can get the most pleasure, with medication and electricity,' the sensation awakened from the deepest part of the uterus... the woman became a captive of point G sensuality.
