Besides...does it strike someone else as strange that in 7 years, the MC never met his step sisters? Weird family.
Not looked at it beyond this thread, but yes, the entire backstory makes me laugh.
Let's see. So a dad, a step-mom, and a son all live together "for a long time." The dad goes away for awhile. Obviously this means the 2 remaining members of the household are going to decide to abandon their home until such time as he returns. It wouldn't be right staying in the house without all 3 of them present. The adult son isn't going to find his own place to live, nor remain living in his current home (which happens to be owned by his only living blood relative).
Not to worry though, it just so happens that one of them has a secret spare house all ready for occupancy. We'll move in there.
Surprise, not only does mom have a spare house, but she has 6 other children that never text, call, write, or stop by to visit. Of course mom doesn't ever talk about them either, so I guess it's a fair exchange. Sure they are all of adult age, but none of them have managed to move out on their own yet. Not made any more odd by the fact that they don't keep in touch.
Now that everyone's living under a single roof instead of 2 domiciles obviously that can have only one result. What's that you ask? Increased expenses, duh.
Hopefully the in-game story is a little better assembled and it's only the brief synopsis that comes off this way. Although I do enjoy the occasional nonsensical story to keep me entertained.