Abnormal families. Father, brother, brother, and younger brother's complicated relationship tragedy

It is the end as soon as it doesn't encapsulate the manuscript of the wife of despair that "despair to life" is sealed. Chasen is not capable of children after marriage. The father-in-law of her father, the father of her father, plans to make her husband, her son, to be impossible and to give birth to her brother's child to leave her family's DNA. The younger brother is interested in the body of the chestnut, and goes to sleep as planned. It is hoped that, when it is possible to know the truth, it is hoped for this hell to continue until the child becomes possible, and the end of the work is accepted.