Rebirth of the Eunuch: Starting from the Harem, He Becomes the Most Powerful Eunuch

I don't understand why the eunuch became a daughter? And the uterus? After reading Chapter 3, I died of poisoning

The titles in this novel are too confusing. Sometimes I call my daughter, sometimes I call eunuchs and nuns, sometimes I call them emperor, sometimes I call them king. I don't know what to write in some places and it seems very difficult. I won't read it. I hope I can write better next time!