looking for something

hii!! i read this comic a while back but now i forget what it was since i never saved it
it was a royalty comic(? i don’t know what the genre is actually called), and the FL was this girl with red hair. she had a blonde sister who wielded a sword(like a tomboy princess), and despised the red haired lead. because the blondie didn’t wanna get married the red haired sister decided to take her place to please her, since nobody in her town liked her. i know the ML wasn’t a good person either? reputation wise, since there was gossip as she left in the carriage,, but that’s all i remember :( it was such a good comic too