Horrific things that were normal to Asian concubines

Concubinage in Asia
Concubinage is a state of cohabitation that lacks the sanctions of marriage. This custom of having a mistress has been around since men and women have been on the Earth. The origins for a male to hold a concubine were for sexual pleasure and to ensure numerous children. Mostly concubines served to satisfy sexual pleasure since any children that resulted from a mistress was considered illegitimate, and unless allowed by their father, had no rights of inheritance. The rich and the ruling class almost exclusively practiced concubinage. It was popular all across Asia.
Concubinage in Meiji Japan was socially acceptable, but the Meiji Civil Code legally adopted monogamy. Men during this period turned to concubines for entertainment, emotional fulfillment, and sexual pleasure. The custom of this time that did not allow respectable men and women to associate with one another in a friendly manner, turned men to concubines. Having a concubine or concubines during this period was seen as a symbol of wealth, high status, and holding authority. A women having a lover was grounds for divorce, along with it being a criminal offense.
Women in those societies had little rights. They had the lowest places in the family and community. It was quite common for a poor father to sell a daughter to a rich man to be a concubine, to get money to take care of the rest of the family. There was also many women who were forced into being concubines simply because a rich man or ruler liked the way they looked.