Yuko Shiraki is married to a very wealthy Doctor and lives together with the son-in-law. He is having bad grades at school and at the same time getting pressured by the Father, who wants to force him to become a doctor and take over the family clinic.
The Mother is worried about the son grades and so she asks the help of a classmate, Makio-Kun, who has the best grades in the whole class. She soon finds herself using her own body to ensure the son improves the grades. But this proves to be a very dangerous business when you are dealing with a lil’ bastard with an extremely high IQ.
Soon enough, (and without telling much spoilers) the son soon finds himself becoming a VIP member of the “Mother training club”.
The original story was done by Doujin author Karukiya. Shiraki Yuuko acting power is remarkable and she delivers again.