Holly crap that gave me a chill. I knew something was wrong with him... but that's scary.
The author is reeeally good at making an athmosphere. (Also I like the brother better now that I know the girl he liked was sick)
I know this won't happen, but I really want to see a future where she just kills them both and runs away. Would be interesting to see, she would choose freedom and danger over safety and repression.
Just a heads up my dudes,
"Love" isn't leaving your mentally impaired father and your sister to fend for themselves without any communication at all.
The return is based on an emotional attachment to them, and you acting on your whims. He exploited his sister because he knew she would step up to the plate in his place