A beautiful and intelligent cram school teacher, Rikako Kanda, 30 years old, makes her AV debut after being subjected to a hard piston from morning to night, causing her to spasm and lose her sense of reason!! This F-cup housewife, who is a "nerd" type who easily loses her sense of reason, becomes addicted to sex after experiencing hard pistons! After a furious hard piston... the housewife loses her sense of reason and begs for hard pistons herself! Her hips are shaking like a newborn fawn! Her F-cup breasts are shaking! She forgets her husband and reaches a great climax! Her first nude sex scene! A sexual monster wearing an intellectual mask appears!!