What you can find in this list: - subtle romance - both main male & female leads appear early/beginning of the story - slowly developed romance/slow romance - romance where its so subtle that you keep shipping them and want them to be together - both male & female lead didn't fall in love immediately, it happen as the story progress - hint of romance (aka open ending but there's hope) - no harem - might have love triangle/rival, if so, I'll mention it
