Hi! I forgot the title of this but it’s a historical Korean or Chinese isekai manhwa. It’s about a girl that transmigrated as a concubine candidate for the emperor to secure and help her village and sick mother. The original owner of her body had a fling and was in love (that is reciprocated) with the guy in the village that helped her with the candidacy thing I believe. She then falls in love with the emperor’s advisor; failed the concubine candidacy; so she was exiled to a small remote island by herself. There would be someone that always send her supplies by boat. There was also this girl that was the other concubine candidate that had a former lover named Moon (I think) that strikingly resembled the emperor.
I thought it was a novel about a man who is the emperors adviser. which would be really fun to read as politics in ancient era had lots of drama and schemes.