Ayize hurriedly came down the stairs trying to seperate the strange person from her kids. Only now did she realised that she didn't know anything about him.
They never introduced each other but he knew about her which was odd. From what Ze told her, there weren't many normal people that knew about their background after all their families could be used as leverage to obtain information.
It was a valid concern that's why they would regularly change their nicknames during missions. It wasn't hard to find out about their past but the Rothschild sealed their personal information file that was stored non-digitally to avoid hacks.