I have the same lore in my homeland too!
I even know people that actually got their karma. They have 3 children after adopting 1, so when the third biological child born, they gave the adopted child back..
In a span of less than 3 years, all the children died one by one because of illness (that actually not chronic, just a simple fever and they were gone).
I also know a family that actually afraid of this lore/karma, so they didn’t gave the child back. But they neglected him. There’s is no abuse, but they treated him differently, they left him behind a lot, and only do the bare minimum so the child didn’t die.
So when the child old enough (18yo I think?), he left the home, leave the family registry (no one stop him btw), and grow to be successful person.
While the bio-child abused the parents, hitting them and yelling at them. And she ended up died in accident while leaving a huge amount of debt for her parents to take over.
I know a few more of this kind of story, so I actually looking forward to Geuru’s ex-parents— if the author the write it, of course.
My relatives had this happen to them! Many years with no children. They adopted a son. Then immediately the next year, they had a daughter and the year after that, another daughter.
It's pity that the son found out he was adopted when he was 18 and left home. They really loved him. But he wanted to "find and live with his real mother". He came back a few years later because she didn't want him but then he ran away again.
It is saying in my homeland that if a couple have a hard time to get pregnant, they should adopt a child and love the child as their own. And that where the magic happens, pregnancy miracle.
Its what people do these days. But returning the child after getting pregnant is very no no, old people said you’ll get karma for using the child’s luck.