Arsonist

Amd her favorite character is Jax.

And she ships Bunnydoll (she'd get Cillian to cosplay as Jax and they go on dates as the characters)

They're meant to be a play on the trope of a mean girl group who all have the same name (ex. The Debbies, the Heathers) All their names are Delaney, the names above are their last names.

Run down on their characters:

Barlow: Barlow is the leader of the Delaneys and was the one to form the group. She adores the other Delaneys (but don't adore her.) She's considered popular and at the top of the social hierarchy. But no one actually likes her, they just know if you upset her then she'll make your life a living hell. She has a boyfriend whose an athele (haven't described what sport) but he doesn't actually like her, he cheats on her with various girls. So he's only with her because of popularity and stuff. This is an open secret within the school, no one has told her because they think Barlow deserves to be cheated on.

Fun fact: Barlow isn't a real blonde, her hair is bleached blonde. Her real hair color is either red or light brown.

Winter: A star rugby player at her secondary school and the second member of the Delaneys. She's doesn't actually hate or dislike Barlow, but isn't very close to her. She prefers Rabbit waayyyy more anyways (she may have a crush on her.) Winter is also the classic mean girl, but unlike Barlow, Winter knows she's mean but doesn't care to change. People consider her the "prettiest" Delaney and prefer her (pretty privilege) over Barlow despite her meanness towards people.

Fun fact: She is bisexual with a female preference.

Rabbit: shoutout to my friend @dumbass-404 for gifting me her. Rabbit is the most recent Delaney, having joined the group a few days after joining the secondary school they attend now because her name is Delaney as well. Rabbit only agreed to join the Delaneys because she wanted a shortcut to the top of the social hierarchy. Rabbit feels great apathy towards Barlow and finds her annoying. She's often called "Bunny Rabbit" by Barlow, Rabbit find it demeaning.The only thing that's making Rabbit stick around is how much Barlow benefits her and Delaney Winter (whose she may have a crush on)Rabbit dreams of becoming a famous kalimba player, and if she thinks you might get in the way of that, she was will not just greatly dislike you but use Barlow and Winter to sabotage you.