C1742

And the ones who had not slept for the entire night were Shangguan Hong and Concubine of Prince Rui, who were deep within the Imperial Palace.

Night had already reached this hour, if the Concubine of Prince Rui and Shangguan Hong were still in the same room, it would not follow the rules.

Even if Shangguan Hong was the biological son of the Concubine of Prince Rui