Seven chaos leaves Shaman are comparable to S-ranked mages, yet the northern duke was able to fight one, even though he was just an A-ranked battle master.
Lastly, he found out that Lily awakened at the age of 14 cuz the higher your age the better chance of awakening a class weapon. Also, Lily didn't like fighting. Her interest lay in cooking mostly. She wanted to become a magic chef that's why she underwent the awakening ceremony at the age of 14.
Charlotte, on the other hand, was leaning on a wall and eavesdropping on them. She was Lily's childhood friend and her guardian. Also, she was a secret agent working under the Northern Duke. Her job was to keep an eye on Lily and the people she meets and report it to the Northern Duke!
Whittaker has certainly noticed her because of his Devansha vision, he could see what's happening behind his back and what's happening in front of his eyes at the same time!