RBD-055 Breast Island 4 Kana Mochizuki SM Domination and Restraint

A woman's husband is sent overseas on a business assignment, leaving her alone at home. A year later, she receives news that her mother has fallen ill and returns to Japan earlier than expected, only to find herself drawn into the forbidden world of Breast Island. There, she encounters her sister Miki Yamaguchi, who is now working for a foreign company, and her mysterious, alluring presence begins to pull her deeper into a web of domination and submission.