Straight romance where the ml is in love with another girl but then later falls in love with the fl
studio cabana
https://www.mangago.me/read-manga/nisekoi_doumei/ https://www.mangago.me/read-manga/hana_kun_to_koisuru_watashi/ https://www.mangago.me/read-manga/ou_sama_ni_sasagu_kusuriyubi/ https://www.mangago.me/read-manga/dame_na_watashi_ni_koishite_kudasai/
Straight romance where the ml is in love with another girl but then later falls in love with the fl