Talk to the yellow cat with the black scruff at fallen clan and keep talking until she says “Tansystar and briar have done great even with the hard ship!” Or something like that then tap her once more and she’ll talk about how no one knows their father but he once lived at a nearby farm. Go back to tansy and briar’s adopted parent and she’ll tell you where the farm is. Go to where she pointing and you’ll find a white arrow that’ll talk to you to a farm path. Walk a bit and you are there. Talk to the cat sitting down and eventually she’ll tell you who the father is( keep talk until she says “ are you sure you don’t want to eat you all look starving!” And head back and tell the parent)