Okay! Here goesss
SPOILERS ALERT!
About the Queen: She will die from sickness, thus her fate remained the same as the story (that is, according from the link, however I do not know what the sickness is).
Truth about the concubine: He was an archmage and also immortal, and once had a man he was inlove with, but the man died, and so the concubine tried any method to kill himself. However, the King is the reincarnation of that man the concubine love, and used black magic to lure everyone to love him or something. Apparently, the black magic is eating is life force(?).
About the prince: The prince real father is the concubine. The King had or forced(?) the Queen to be pregnant by his concubine, and the reason for that was so the concubine can have a clown of himself. However, I do not know exactly how the prince will be the concubine's clone. I think the other reason as to why the king and the concubine planned this is because the prince will then have the blood of the royalty from the Queen, and also have the bits of his concubine. Sooo, the prince will then be the King's new lover after the the black magic has completely eaten the concubine's life! Very disturbing and disgusting...
The plot is very interesting and I do not fully remember the ending, but they said that the maid will go back to her original place along with 2 handsome guys(unsure about this too), and about the King and the concubine, they said the two will not get any retribution or something.
I'm not really sure about this tho. All the info and spoils I wrote came from the people who gave it out from the link I shared. So credits to them and thanks! (=・ω・=)
If you need confirmation and other info, please click the link.
Please don’t pass that link around. The first few pages of that spoilers page are riddled with false info. Always check the entire thread. If you’re too lazy:
https://forum.novelupdates.com/posts/5762864/
Hello! Thank you so much for informing me about this! I was actually quite unsure about the spoilers that I thound but I thought at least I have spoilers that I can share to others, especially after seeing a few disturbing truth about what the concubine did. I'm really sorry for not thoroughly examining the other pages, I'll try to be more cautious next time. I wasn't really expecting that others would actually spread false spoilers. Should I delete my post as to not mislead others or just leave it as it so that they can see your reply?
SPOILERS ALERT
(ANOTHER ALERT! APPARENTLY THE INFO I actually acquired is nowhere near a 75% correct (I'm sorry for this), The only spoilers that I gave and can confirm is that the Queen did die and that the concubine did use black magic.
Someone shared a link to a much reliable source below, so please check it out if you are curious! (Thanks btw!)