Four years after marrying her husband, Sadao, Marina lives with her father-in-law, Atsuo. Marina, who looks bright, energetic and happy, has a secret. Since she was forcibly fucked by her father-in-law Atsuo half a year ago, her distorted physical relationship has continued since then. Her father-in-law's beautiful bride training begins after she sends her beloved husband to the company with a smile. Contrary to the words "Father-in-law, please forgive me", Marina's secret part overflows with love juice.
