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The very popular series "Mother's Railroad" lewdly depicts a wife's infidelity with her mother who has come to Tokyo from the countryside! A mature woman's sexual desire that she can't have enough of seeks a place to go.... She falls into one-time adultery with her husband! An irresistible mixture of immorality and elation! The best 10 bestsellers of the bestselling popular series are gathered together in 4 hours, and you will enjoy them to the fullest!