The second couple had eight children who are the fairies from the first story and one of them is the mother of our mc, so the mc from the first story is the grand child of the couple from the second story
so the dog who went to get the sister was his grandpa?
Yea ; and he was the guy with the cut on his throat from the second story
who
The dog who went to the sister is her and MC's grandpa and father of the fairies.
Dog = grandpa -- was the dark haired guy from the second couple's story----- who are the grandparents ---- the mountain god ( white haired one ) , the dog ( bumryung )
I finished this wonderful story, yet I'm still not sure if I'm correct. Does the second couple is the grandpas of the first couple and the fairies?