It's driving me crazy. I googled the lyrics but there's absolutely no trace of this song in the entire internet…
I'm glad I'm not the only one obsessed :P I also found it on two other fb sites: a french regional tourist ad and a by the hour hotel. Maybe it's from some stock music site or royalty free music site?
"Eunuchs of the Chosun Dynasty lived with privileges: Korean eunuchs were conferred with official ranks and were legally allowed to marry, a practice that was officially banned in the Chinese Empire. In addition, married couples were also entitled to have children by adopting castrated boys or normal girls." , The lifespan of Korean eunuchs https://www.sciencedirect.com/science/article/pii/S0960982212007129
(for me at least)