Is this the one where she has a demon who transforms into a dog?
I think this is the one?
https://www.mangago.zone/read-manga/how_to_get_my_husband_on_my_side/
oh my gosh it isss lol i read the novel of this last year so i kinda forgot that this was on my reading list. thank you so muchhhh.
i can't quite remember but i don't think so. user neemorebishies was able to pinpoint the story tho. nonetheless, thank you for trying to help me <3
Glad you found it! Here's the demon dog one in case you were curious:
https://www.mangago.zone/read-manga/i_ll_just_live_on_as_a_villainess/
not sure if it was a transmigration or regression. all i remember was that the fl was able to talk to monsters. there was this one scene where a dragon (i think) attacked and she was able to talk to it. also, i remember she had a brother who was OBSESSED with her and was romantically attracted to her. i think she was the daughter of a priest(???) or like someone who was affiliated with a religion.