not sure but
https://www.mangago.zone/read-manga/ani_no_senaka/
i remember reading a manhwa (i think) where the boyfriend meets the brother at a bar or something but i can't remember ╥﹏╥
ah I'm not talking about that one, I included it in one of my links so dw
OMG OMG OMG HELLO DO YOU WANT TO MARRY ME MY LIFESAVER ヾ(☆▽☆)
Thanks for the help but I found it from another person's link!
does anyone know a manga (not manhwa or manhua) where the uke's sister died and since she had a bf the bf didnt want to let go so the bf dated the uke and uhh lived happily ever after? i think the title was like "dating my sister boyfriend" and no it is not https://www.mangago.zone/read-manga/kawaii_kara_kimi_ga_warui/ nor https://www.mangago.zone/read-manga/i_fell_in_love_with_my_girlfriends_brother/