Traversing through the ancient favorite concubine (the female lead with the system first) usually involved various elements such as transmigration, rebirth, and system flow. [1. System Transmigration: The female protagonist transmigrated to ancient times and was saved by the system. From then on, she embarked on the path of relying on the system to survive, improve her strength, and save the world.] [2. Reborn in ancient times: For some reason, the female protagonist was reborn into ancient times and began to struggle in ancient life with her past memories and skills.] 3. Palace struggle: The female protagonist is selected to enter the palace. Through wisdom, means, and the help of the system, she wins the palace struggle and becomes a favored concubine. 4. Cultivation Plan: The female protagonist was saved by the system and raised into a powerful system baby. From then on, the female protagonist began to struggle with the system baby. 5. Build her own power in ancient times: The female protagonist will build her own power in ancient times and obtain more resources and power through political means, business means, and military means. These are some of the common plots of the ancient concubine novels. Of course, different authors would have different plot settings and worldviews, so the specific plot would be different.