I can't remeber the title of this korean manhwa, but it's about a girl whose mom works for this really rich family. the mom treats the daughter of the rich family like her own, while treating her own daughter like crap. There's a rich guy, i'm not sure he might be part of the rich family, who likes the poor girl and dislike how she's mistreated. And I also think that the rich daughter is a model.
Its neither of those, but the style of drawing is similar to He's Dedicated to Roses. The girls not violent,and the brother protects her, but thats all I remember
