In ancient times, after concubines went to bed, their names were recorded in a book. What's the name of this book and where is it kept?

Juzhu;

During the Wei, Jin, Southern and Northern Dynasties, most of them compiled residential notes as A Lang. During the Northern Wei Dynasty, there were other officials, such as "House Notes" and "House Prison Notes", who were responsible for serving the emperor and recording his words and deeds. In the Sui Dynasty, there were "dormitories" in the province of literature and history (that is, the province of Zhongshu). In the Tang and Song Dynasties, there was a "living lang" under the door, and the words and deeds of the emperor were recorded separately with the "living shed man". In the Yuan Dynasty, in order to give lessons to others, I also edited Gather the Beads. In the early Ming Dynasty, there was a special residence note, which was gradually abolished. In the Qing Dynasty, Japanese commentators such as Hanlin and James also served as "Japanese commentators". "Epitaph of the Ministry of War (Yuan Keli) of Ming University" by Kong Mingyun: "Bow to Jinshi Ji, Dr. Zhu Guoguang-lu, Prince Taibao, Li Shangshu, Master Wen Yuange, President Yu Die, Imperial Decree of Tongzhi, Japanese Banquet, and domestic servant Kong Zhenyun."