JUFE-625 A modest wife living in the countryside, with a large bust and a kind heart who cares deeply for her older brother… but her hidden side is a vulgar, seductive woman who tempts with shameless self-pleasure and drains him dry with a sweaty riding position. Sarara Uruki

After several years, Kanade returns to her family home in the countryside. His older brother’s wife, Sarara, is still as plain and kind as ever, faithfully supporting her husband as the ideal wife.

But on a midsummer night, Kanade accidentally witnesses Sarara in a room with a broken air conditioner, drenched in sweat and lost in private pleasure. In truth, the serious sister-in-law has a hidden side: she is a woman unable to hold back her desires.

After being seen in such an intimate moment, Sarara begins seducing her younger brother-in-law right beside her sleeping husband, drawn to his youthful energy.

From there, the two begin a forbidden relationship that can never be told to anyone…