Ruriko is the wife of the president of a struggling food company. To save the business herself, she visits the chairwoman of a supermarket client, Shiho, to pitch a new product. Shiho is bisexual and takes an immediate liking to Ruriko, plotting to seduce her. Initially resistant and uncomfortable, Ruriko gradually begins to experience emotional changes through her interactions with Shiho. Eventually, she awakens to her own lesbian desires and becomes deeply drawn into a passionate relationship with Shiho.