The Shining History of Vicious Female Supporting Characters

After inexplicably traveling through time, Jiang You came to a strange world. He originally thought that Mary Sue's wealthy sisters were competing for love, but who knew that she was actually a disgusting and vicious female partner? He also did some very shameless things... Taking things as they come, Jiang You planned to completely reverse the situation and stew those who plotted against her, but she never thought that things were not as simple as she thought.