By looking at the brother-in-law
I don't think so...
But that's possible
It's a theory but readers need to understand as well that the seme didn't actually have a son, kotsu is his older sister's biological son. I feel like some people forgot about it. Anyway just putting it there haha
I know. Its just weird how much they children look like the others' family. Lol.
Yes, even the characteristics of the two boys seems like a switch right haha
I mean, he is in a dramatic novel written by his sister, whom he seems to think is a drama queen herself, so I wouldn't put it past her to have that as some cheesy plot twist. Lol
Those children were switched at birth.