Oyudono no ue no nikki
A collection of diaries recording daily life in the imperial court during the Muromachi to Edo periods. This is a proper noun referring to a specific historical document.
"Oyudono no ue no nikki" is a valuable historical source for understanding court life from the Muromachi to Edo periods.
The title literally means 'The Diary of the Upper Chamber of the Honorable Bath House,' referring to the room where court ladies served the emperor. The exact origin of the compilation is uncertain, but it is a well-known historical record.