The final night spent with her precious only son. Countless memories flood back to her mind. They had lived together in a single-mother household, supporting each other through many hardships. But today is the end; tomorrow, her son will leave the nest to start his new job. Kana tries her best to send him off with a smile so he won't worry about her, but... her son felt the same loneliness. The two of them devour each other as if clinging for dear life. They don't want to be apart. That feeling spirals out of control, and the son doesn't stop pounding her even after Kana reaches climax. Under the onslaught of relentless piston fucking, Kana...