Wing loved Yui, his mother's younger sister. One day, when he obtained his passport, he found out that his birth parent was Yui. Knowing this day would come someday, Yui and her adoptive parents told him the truth. Yui and Wing decided to have a quiet talk together and went on a hot spring trip. He found out that the neighbor woman was his real mother and she was his lover... Wing kissed her and touched her mother's huge breasts. They were released from reason and immersed themselves in love acts. A forbidden love hot spring trip.
