Rae's Questions (2)

I want to reread something here but then I forgot the name The Mc witness the execution of someone, that someone somehow cursed the king, and mc saw the king's face too (it's in an old sokor era idk what's it called) then ml and mc began swapping bodies when night comes they go back to their orig body and sometimes the Mc will act like the ml etc ┗( T﹏T )┛

Welp, I'm finding something that I read before but I can't remember the title. It's a yaoi, they are Co workers then sex buddies, the uke have a hamster I think that he named like the seme's name.