Whenever I read about or see these stories, it always kinda moves me.
There was a story about 2 Kappas who discovered that they are actually blood brothers. I think it was posted on here a year or 2 ago. But it was very interesting.
And there was an actual show where they helped adoptees and those who gave up kids for adoption find each other.
One lady discovered the lady she befriend on her job at a hospital ended up being her mom.
Funny thing, most often, these siblings lived in very close proximity to one another. Other times, they ended up on opposite sides of the country.