I'm looking for romance mangas where a guy is obviously in love with a girl but can't show it for some reasons. Preferably if it is a kind of love-hate relationship like rivalry (but not with tsundere characters).

I would love it if the manga has a historical setting and they're supposed to be enemies. But a highschool setting would also be alright.

I don't have an example right now so I hope you understand what I mean.

Please don't suggest any ecchi or harem mangas. I'm alright with manhwas or manhuas.

Like Basara?

So Last Game is no good?

in need of romance?
uncommon, sad, sweet

yeah, something like basara but I've already read it

Last game has a good rivalry but I think it's too obvious that the guy likes the girl.

Do you have any lists of what you’ve read or are reading? If so, could you make them public, so it’s easier to recommend things?