"Makoto Himemiya" is confessed to her childhood friend "Kaoru".
With her first kiss, she was so happy that she just kissed her thickly.
She had a strong libido and was very interested in her naughty things.
She spends her days diverging by indulging in masturbation while watching a naughty video rather than suppressing it.
"I know what kind of woman you are."
Her brother-in-law was seeing such a true situation...!?