asami, the nurse chief at the sex therapy department, is beautiful, excellent at her job, and has a handsome husband, making her the envy of others. however, she actually has a strong aversion to sex and is frigid. she cannot feel anything during sex with her loving husband. because she is frigid, she thinks of sex therapy as just a job and teaches her subordinates, the nurses. but her performance is too good, and the inspector demands to see her usual treatment. and then the situation takes an unexpected turn.