For Granted
Willam realised just how much he was intruding on Lilly's privacy and bowed his head while saying, "I'm sorry, Master. I won't do that from now on."
He was cursing himself from inside for asking such things. Just because Lilly had been nice to him and taken him as her disciple, he had taken her kindness for granted and was actually asking about her secrets.
Just how bad he could get? He himself knew how big of a secret bloodlines and anything related to them were; even then, he was asking.
Lilly smiled, seeing that Willam understood what she was trying to say. She didn't lie when she said Willam could get into trouble if he knew too much about her.
She was the sole princess of the Great Yan Empire, the empire that ruled over the world. So naturally, it had many enemies that wanted to overthrow it and make themselves the ruler.