Almost committed incest. I was a sex toy for my father-in-law and stepson. (KSBJ-402)

Ten years have passed since Natsuko's husband's death. She continues to live with her husband's stepson and father-in-law. Although she lives off her husband's insurance money and isn't restricted in her freedom, she always feels something is missing. It's due to her recent intense sexual desire. Since her husband's passing, Natsuko hasn't had any sexual relations with a man, satisfying her desires alone. She never expected to be embraced by her "adopted son" and "adopted father"...