You where selected as the new concubine of his majesty on the selection as he's crowned at the same time. You're currently given a rank of a 'Gui Ren' or noble lady (5th rank to the Empress seat) and you are now officially a part of his harem along with his 4 concubines. He granted you the Yanxi palace along with your title

He flips your tag,choosing you to tend him tonight after the crowning ceremony

Night comes, he visits your palace and his guard announces: "Representing His majesty!"