Des：Newly married Koichi and his wife return home to their parents home, where his mother and older brother and his wife live, for the first time in a while. However, by chance, his brother and his wife start having a physical relationship. Koichi, enraged by the fact that his wife was cuckolded, surrenders to the desire for revenge and rapes Hisaki, his brothers wife. The once happy family has collapsed, and the parents home has turned into a hell of lust, and the daily acts of humiliation towards Hisaki continue... Newly married Koichi and his wife returned to their parents home, where his mother and older brother and his wife live, for the first time in a while. However, by chance, his brother and his wife start having a physical relationship. Koichi, enraged by the fact that his wife was cuckolded, surrenders to the desire for revenge and rapes his brothers wife, Hisaki. The once happy family has collapsed, and the parents home has turned into a hell of lust, and the daily acts of humiliation towards Hisaki continue...