The moment Haseol becomes an adult, she's getting cut off from her Aunt. I'd hope the spinoff at least covers that side as we find out who's actually going to be making the money in the household.
All sorts of emotions. I'm glad their happiness has been unmolested in the main story. I just hope we get to see a bit of the wedding in the sidestory.
Because there are two isekai'd people in this setting and two people who were affected by that isekai'd memoryset. The conflict comes from the context of the memories and how they reacted (Fear vs Ticket to Power).