I'm waiting for this to all eventually lead up to being the backstory for one of our modern day dragons' families. Maybe the half dragon girl at the cafe.
I'm not sure if you're joking, but it
is her backstory. The Victorian era comics started with chapter 88 and the end of that shows it's the half dragon girl that runs the maid cafe telling it as her family's history. She's even holding up a genealogy chart.
But we've seen her mother and she's a regular dragon, so maybe that's on her dad's side?