SNIS-511 Saeko Kimishima plays a doctor whose cervix is developed in a secret experiment

Saeko Kimishima is a female surgeon at a Tokyo hospital who rejects a colleague's advances, and in return he makes her the subject of a hidden experiment. Medication and electric current are applied to her cervix, the area called the portio, and the sensation awakens a deep aching pleasure. The 2015 release runs 119 minutes.