Sumire, the wife of the president of Mihara Corporation, is disgusted with her husband who neglects his family and asks his son for solace.After that, her mother and her son crossed the line into a man-woman relationship.Today she went on a trip to the Aise hot springs with her son, which was her long-cherished wish.There was a man giving the two of them a suspicious look as they joined hands and arrived at the inn they were aiming for.When this man made a deal with Sumire's girlfriend's husband's company, she was made to drink boiling water and resented it.Sumire mother and child who do not know such a thing immediately headed to the chartered open-air bath.After soaking in the hot spring for a while, her son asks for Sumire.She responds and Sumire also loves her son.Her loving mother and child left the open-air bath with satisfied faces until the end of her reserved time.She doesn't know that the man from earlier is voyeuring.In the evening, as Sumire was walking down her hallway, a man called out to her.She showed the video from earlier to the suspicious Sumire.She takes Sumire's hand in surprise and goes to her secluded place.She is forced to kiss and her body is groped.In the act with her son, her sensitive body reacted to her rough caresses and she was forced to orgasm.The man made Sumire, who disliked exposing the male genitalia, hold it in her mouth and fired it into her mouth.Sumire was at a loss for words when the man said that she would be entertained while she was at the inn.She was called by a man and Sumire went to the room where he was waiting.There was her male subordinate there, and Sumire offered her body as she was told.With her words, with her fingers, with her tongue, Sumire is squid while teasing with a meat stick.Even though she climaxed with pleasure she had never tasted before, her body was still shaking.That night, Sumire acts as her beloved son wants, but she can't be satisfied with her son's unreliable SEX.Sumire, who is not satisfied even if she runs her finger on her aching crotch, secretly heads to the room where the men sleep in the middle of the night.