I had to go back to the tags to check that this isn't "yuri". I respect all genres but yuri isn't my thing.
Putting that aside, the trash "dad" is grooming her, fucking disgusting!!! I've seen so much shit in my day but I believe this is the first one I read where the MC who is a kid learns of such a grim secret. I'm so happy she will escape but I hope the blond guy (I'm assuming he is the ML) takes care of her for real and doesn't have agenda of his own to use her