The "dad" needs to be locked up. The "step-mom", though pretty, seems like a bitch character. The "step-sister" is just an unfortunate child, having those 2 as parents, and definitely on the road of becoming a bitch.
The good thing is that I love bitch-slapping and since we have many candidates for that I expect a lot of it in later chapters.
Thank you for the continuation of the series, Lily!