What is the difference between a promise and a maid-in-waiting?

Since the Kangxi dynasty, the promise is the emperor's concubine, seven products. Their duty is to live in the harem with the concubines, "diligent in internal work", and not just to hand over power and minister.

Although Wuji is in a lower rank among the wives and concubines of the emperor, she is also a "master" in size, which is nominally different from maids and eunuchs. Maid-in-waiting mainly works as a policeman in the Forbidden City, serving the master.

Difference 2: Different positions.

Wuji: Wuji has a certain position, which can basically be characterized as "storing a princess", above the ladies-in-waiting.

Maid-in-waiting: Dedicated to the royal family, belonging to the lowest level in the palace.

Maid source

The early ladies-in-waiting became the concubines and ladies-in-waiting who defeated the emperor by fighting the defeated female prisoners. After the Han Dynasty, the imperial court sent a large number of personnel to select beautiful women from the local people, aged 13, aged over 20, and chose to enter the palace. Once a beautiful woman is chosen as a bridesmaid, she will never be reunited with her family, locked in a palace and isolated from the outside world.

Only a few people who are favored by the emperor can be promoted to concubines, and the vast majority of ladies-in-waiting are lonely and sad. In order to prevent the maid-in-waiting from resisting, there are severe punishments in the palace. Maid-in-waiting can be killed at any time and anywhere. Judy, the emperor of the Ming Dynasty, died suddenly. He killed hundreds of maids and eunuchs at one time because he suspected that maids had poisoned tea. It was not until the demise of the Qing Dynasty that the ladies-in-waiting returned to the world to see the light of day.