Yuna Shiina is invited by her mother-in-law who wants her son-in-law's big dick all the time.
Recently, Yuna's husband's break-ins have increased and her frustration has increased. As she spends a sleepless night in agony, she finds out that her son-in-law, Ryuichi, who lives with her, is not being treated by his daughter and is masturbating every night... Surprised by his extremely thick dick, Yuna can't resist the lust that wells up from deep within her body, and uses his dick around the clock under the guise of ``I'll take care of you.'' Drowning in the pleasure of a big dick, the son-in-law pours out his excessive sexual desire during his passionate days with his mother-in-law, who devours her lust...
