Violet is said to be highly skilled in rhythmic gymnastics.
Such an activity doesn't exist here, so I don't really know what it is.
However, just by observing Violet's moves,
I can tell that it's quite a sport.
Hmm? She's the athletic type, huh?
Ah, it's one of those groups with distinct hiearchies between members.
So that's Violet's background. No wonder she's so polite!
—Vice

Code name Violet.
A young girl who's a stickler for pronouncing V properly by biting on her bottom lip.

Anyone who has a greater knowledge than her in any field
is respectfully referred to as Senior.

To keep her perfect figure, she's always on some kind of a diet.
But whenever restrictions are removed, she goes all out
and eats to her heart's content.

Besides her seniors among the Thieves, there was a teacher in her original world who took really good care of her.
Violet described him as gentle, mature,
but somewhat eccentric.