My friend's wife is a lewd tutor

It's been 5 years since my mother passed away. A father who has raised his son single-handedly decides to call in a private tutor to help his beloved son who is depressed after failing an entrance exam. The person who came was Maki, a colleague's wife and a highly educated and talented woman. Maki and her son immediately start studying, but this tutor turns out to be an extremely erotic slut teacher! ! The son, who has fallen in love with the adult's bewitching charm, is now Maki's Toriko...