their eyes only change when they kill an innocent or a pure soul, or that is how I understood it.

Lilly isn't the daughter of Esther so no she isn't related to Elijah, Finn, Kol, Rebekah, or Freya. Lilly is the daughter of Ansel and his Luna, another wolf. Klaus and Erik are Lilly's half-siblings through Ansel, that is how that works, Ansel and Esther were never in an actual relationship, just an affair.

Yes English is my first language. this is just my first time writing. I will eventually go back through and actually correct my punctuation. I only started writing 18 or 19 days ago. when I posted the first chapter on my other book. for now i just load the chapters through my computer then post it. As i get better at writing i will go through and correct all the mistakes. thank you though.