Asami (Yuko Shiraki) lives in a wealthy family with her husband, Junichi, who is the head of the hospital, and her only son, Jun. Although happy, Atsushi had poor grades in school and felt pressure from his husband and mother-in-law who wanted him to succeed him as a doctor in the future. At that time, Atsushi cheated on his classmate Makio's answer during the exam. Asami went to see Makio to get her to forgive him somehow, and she signed an obscene contract there. And for three days during the exam period, Makio came to the house to teach Atsushi about his studies.
Mother training "My mother will be his toy for 3 days during the exam period" is here!
