"Don't tell me..." The "sister-in-law" appears in the big hit series! While my wife is away, I'm alone with that sister-in-law... I heard the sound of my reason breaking inside me... The office lady sister-in-law has an extraordinary style that is rumored to be "model-class" even in the company! But... behind that, there's another face hidden, a face full of sadism that she shows the moment her desire switch is turned on... Once she becomes like that, she can't be stopped by anyone! "This is just a secret between the two of us, don't tell my sister..." Her hip movements become more intense, and I spewed my desire into that body... Between transgression and pleasure, how far will my sister-in-law fall...? The biggest eroticism in the series is waiting for you...! *The recorded content may vary depending on the distribution method.