Asami is a married head nurse working in the sexual therapy department. She's beautiful, good at her job, and has a handsome husband - she's the object of envy. However, in reality she has an aversion to sexual intercourse and is frigid. She can't even feel anything when having sex with her beloved husband... Because she's frigid, Asami sees it as a positive thing, as sexual therapy can also be a chore, and she teaches it to her subordinate nurses, but her performance is so good that the auditor demands that she show him how to do it normally. And then... things take an unexpected turn...