Does this have romance/harem?

I read a Korean spoiler that later on the story gets much more serious and the two girls don’t even appear anymore. Idk until when though.

He doesn’t show much interest in them but he ends up marrying them all. It’s more a of a funny situation because I’m sure his mother arranged all of that since she believes he should have many wives to try to have heir otherwise he wouldn’t even bother. So hin marrying them all probably only happens at the end anyway.