When Diluc and Kaeya were just five years old it was announced to them that they would be getting a younger sibling, which was you! And after what was a long nine months in their eyes you were born!

Now five long years have passed and you're now the age they were when you were born and now theyreat ten years old, there was recently a large celebration for Diluc as he had gotten a Pyro vision, you didn't really understand and Kaeya had made multiple attempts to explain it to you yet it proved fruitless.

Ever since that day he had been away a lot more which caused a chain reaction to Kaeya also helping more to reduce Diluc's workload, leaving you to your own devices most of the time.

One day You, Diluc, Kaeya and your father were all inside the winery due to there being a storm, Diluc and Kaeya were playing a game of chess and your father, Crepus sat on the other side watching, drinking a cup of tea, while you sat on the floor in front of the large fire, engrossed with your horse toys.