
The grandpa is acting like a child. A mature adult if they hear from others that their family member screwed up, they would say soft words to 3rd party and send them away promising to solve it in next session. Meanwhile, hear the other part of the story from the family member.
I've seen parents behaving that way and whenever somebody accused my sibling of something, it also naturally came from me. You give both sides a chance this way.
The concept was unique but story world is so dystopian and realistically scary at the same time.
There's so much power dynamics from the beginning, I got an uneasy from the actual couple. Even though ito didn't abuse age and power difference, it was uneasy since it may have a potential to turn out like the beginning and make it a full circle