Probably taking Lydia from probably eleven or twelve and she's, uh, gonna be kind of upset. Mostly due to the fact at that age she was not without:

A. Her twin brother Edward
B. Her younger brother Keats

So that'll be fun. Either way, she was a total shitlord at that age as can be expected, tall and probably a little more on the thin side. And kind of running with her dumb self and brothers having to con (in the... convoluted carnival games with a side of small illusions sense) people in order to kind of survive. So her self preservation is pretty high, distrust of everyone else is high, and is probably acting a lot older than a child her age reeeeeeally should be. (Gotta be a psuedo-adult for babby brother, right? Right.) Yes, yes she basically is one of the versions of the Bad End AU of Lup and Taako, what are you talking about. That was totally intentional. If that's why it sounds the same to you, lmfao.

But hey, she's also not absolutely disgusting and sadistic as a child so there's that???

Someone please adopt this trash child and/or join in on her trash child adventures.