The first one is Lv Zhi. Lv Zhi is Liu Bang's wife. At that time, Liu Bang had a concubine who was very popular with him, so Lv Zhi held a grudge against her. Because Liu Bang was still alive at that time, Lv Zhi couldn't do anything out of line, but after Liu Bang's death, Lv Zhi immediately cut off all the limbs of the favored one, not only that, but also turned her into a human being. This shows that Lv Zhi's method is very cruel, and she hates that woman very much.
The second one is Zhao. Zhao is a famous beauty in history, but her heart is also very vicious. Because she can't have children, she actually prevented other concubines from getting pregnant with dragon seeds. This is undoubtedly very unfair to other concubines in the harem. In order to compete for favor, she poisoned all the concubines who threatened her. You can also see that she is ruthless.
The third is da ji. At that time, da ji not only puzzled Shang Zhouwang, but also made Shang Zhouwang careless in managing state affairs, hurting innocent people. At that time, there was a folk saying that when she saw a common people walking on the ice without shoes in winter, she became curious about the feet of the common people and asked the servants around her to bring them to her. So innocent people were amputated because they were caught by da ji, so da ji's mind was very vicious. And Zhao both killed those who threatened them, but da ji killed innocent people.