*SPOILERS of Ending

I think the pairing of the story is of Kai and Sehun from Exo. It was during the age of castles, kings and queens, maidens and servants. I can remember just a little of the overall plot. Sehun was the king or prince's brother and Kai just transferred his kingdom as a knight. Sehun loved Kai, but he kept pushing him away because Kai thought that it wasn't right for a prince to fall in love with him. Eventually, Kai scumbadd and accepted Sehun's advances. Time skip to the end (don't remember anything at all in b/w). Kai has to fight for the kingdom and Sehun has to stay behind for her was the prince and bearing Kai's child. After Sehun had his baby boy, he moved to the countryside. he thought Kai was dead, however, Kai showed up at the front steps.

I'd really appreciate it if anyone could help me out. Thanks! ❤