Koyuki became certified as a home helper while caring for her father-in-law at home. Koyuki felt that medical care was necessary due to her father-in-law's age, so in order to obtain a more advanced qualification, she decided to work part-time at Komiyama Care Service, which was the closest to her home, but the director there, Komiyama, was known within the company as a sexually harassing boss. Koyuki, who does not know this, ends up being targeted by Komiyama and is exposed to various types of sexual harassment in the guise of nursing care training.
