JUL-738 My older brother asked me to take good care of his family, so I decided to train the mother and daughter to cum together and make them obey. - Ai Mukai Miyu Tsubakihara

His wife, Miyu, and her daughter, Ai, are left behind after her husband passes away due to illness. - It was Yuji, his brother-in-law, who extended a helping hand to the two. - Yuji is asked by his older brother, who has only a short time to live, to take care of the two of them. - Yuji, who has liked Miyu for a long time, reluctantly agrees, and the three of them begin to live together with Miyu and Ai, who is away on his own with her husband. - However, as the three of them live together, Yuji's secret feelings and sexual desire start to spiral out of anger at having his brother impose on him the family business. - And the two of them are faced with the days of love, where they are not allowed to resist...