Mother and child mating ~ Okushiohara rural road ~ Hibiki Otsuki BKD-353

A friend's father disappeared, leaving no children. The friend gave birth to one of her twins, and her son grew up and went to university. While applying for a student visa, he learned about his real parents. Hibiki's friend suggested she take her son on a trip so they could calm down and talk things out. Knowing there was no blood relation, the son began to see his adoptive mother as a woman. In a hot spring, the mother's beauty aroused him, and Hibiki took his hand, allowing him to relax. Naturally, he took Hibiki's hand… From reason to taboo, liberation to pleasure, a story of incest between a foster parent and their child.