Her husband openly cheats on her, and her son is indifferent to everything... In such a family on the verge of collapse, Aki spends her days feeling depressed. One day, Akie seduces her son with a certain thought in her heart. And together with her son, she becomes immersed in forbidden lust... A beautiful, mature mother in her fifties seduces her son out of loneliness. And together with her son, she becomes immersed in forbidden lust, leading to the collapse of her family...!