Incest: The son who returns is a shemale. When he sees his son who returns as a beautiful woman, his father and brother...

When my son returned home, he had become a transsexual. My father and brother are surprised. At the same time, the two are hopeless, lustful and lustful at their son who returns beautifully, and end up having incest sex with Miyu (son) and end up having a threesome.