Kumiko is 39 years old and in her prime. She worked hard with her husband every night, and Kumiko enjoyed it too. However, when her husband left for Borneo alone, she was involved in an accident and did not return home. Despite her grief, Kumiko, who can't handle her burning body, becomes conscious of her husband's orphan, Kaname, as a man. Every night, Kumiko repeats her masturbation to make her sound like she's the key. The key is to become aware of her Kumiko. And the time has finally come for the two of them to cross the line...! Includes two other chapters.
