Synodic Period

She thought she was a time traveler and became Concubine Yuan, the most favored concubine in the harem. It wasn't until the third time that I discovered that the damaged areas of the dragon pattern on the emperor's cuffs were exactly the same. Until the seventh time I smelled the exact aroma of ambergris. Until the seventh day of July, the day recorded in history books when the imperial concubine swallowed gold, came again...