A young bar waitress, Natsuko has accepted to many Mr. Uehara, a rich art teacher. It’s because Uehara could pay the debt for Natsuko’s ex-husband. Mr. Uchara agreed with the terms but suspected that Natsuko betrayed him for money and continued to meet Seiji. Mr. Uehara determined to punish his young wife in his “artistic” way. He tied her up and locked her in the basement of his house, or better described as “the beasts’ cage”, a place where a “bitch” was tortured and sexually abused in various SM ways

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