Black Butler: Undertakers daughter

The request

Ciel and Sebastian are once again in the Undertaker's shop, though they weren't getting a scare yet "Have you ever heard of Knocking?!" a voice yells/asks and someone is kicked down the stairs, so Sebastian opens the door and sees the Undertaker laying on his back "Welcome" he says and gets up, walking to the Earl "Sorry you had to see that, girls are scary, especially the non human ones" he says and someone walks down the stairs "I heard that, but I consider that a compliment" the girl says, her black hair and light orange eyes making her look like a demon "Earl Phantomhive, Sebastian, meet Flare, she's my daughter" Undertaker says and the girl quickly adds "Actually my name is Shadow, but Flare works outside with the humans, he adopted me". Sebastian looks at Flare and Undertaker says "Right, this brings me to something, Earl, I need you to do me a favor" "A favor?" Ciel asks as Flare sits down next to Undertaker "I want you to take her in, give her a nice home" he says and Sebastian seems to be done examining the girl "I wouldn't mind, I'd like to know what she is first" Ciel says and Sebastian says "A vampire, a young one, though from the eye color I'd say half human as well" "Bingo" Flare says and she smiles "I have the lifespan of a human, but the perks of a vampire, unless I drink someone's blood, but that idea disgusts me to no end, I just don't have any healing abilities" she says.

Ciel sighs "Alright then, we'll give you frequent updates of how it's going" he says and Flare says "At least people will knock before entering someone's room" "I already know Flare!" Undertaker says earning a chuckle from the young Earl "I think she will make a fine addition to our staff don't you think?" he asks and he adds "She can act as my personal servant when you're too busy" "I agree, but we have yet to see her fighting abilities" Sebastian says and he sidesteps as Grell wants to hug him, so the reaper lands between Undertaker and Flare, who both don't seem impressed and Undertaker says "Flare my dear, please escort him out" "Sure" she says and gets up, grabbing the reaper by the red coat before trowing him out "Oops... could use some work there" she says rubbing the back of her head "Sebastian, you're to train her as well" Ciel says, they leave with the information needed and Flare sighs "I hate the sun" she mumbles and Ciel holds his comment for himself. They soon arrive at the mansion and Ciel sweatdrops seeing everything decorated "Ciel!" an energetic Lizzy calls and hugs the earl "Is this normal?" Flare asks quietly earning a nod from Sebastian "Lizzy, I'm busy, where are the other servants?" "Here" Bard says and they walk over "Ah, perfect timing, this is Flare, he'll be Sebastian's right hand and see to me when he is busy" Ciel says and Lizzy now only notices the young girl, who doesn't get a chance to protest before she's pulled along "Lizzy, what are you doing?" Ciel asks, but is ignored, soon his fiance is back pulling a complaining Flare along "I look hideous, don't drag me along!" the girl says, but is too late as everyone is instantly speechless "You look... beautiful" Sebastian says making the girl blush, Lizzy had forced her in a red dress that reaches the ground "I agree" Ciel says with a slight chuckle "Grell would be jealous to see you looking so nice in red" he says.

After the party that Lizzy threw Flare learned several things, 1: Lizzy does no listen to you at all, 2: Lizzy likes doing that and dressing up everyone in cute clothes and finally she learned never to underestimate Sebastian who had sort of snapped near the end because Lizzy had accidentally hurt Ciel "I'll be fine, just sprained my ankle" he says and Flare sighs "Sebastian, I assume you'll be busy cleaning up this mess" she says earning a nod, so she walks to Ciel and puts him on her back "Lizzy, I need to know where his room is" she says and the two head of "So, you're our age right?" Lizzy asks making Flare tilt her head "Guess so" she says "Anyway this is his room" Lizzy says opening the door, but the three are startled by Tanaka who says "Lady Elizabeth, shouldn't you head home to make sure you won't worry your parents?" "Ah right" Lizzy says and she waves before running of "She's annoying" Flare says putting Ciel on his bed "Do you need help changing?" she asks crossing her arms "Fine" Ciel says and Flare sighs taking of the Earl's coat "Next time Seba-", Ciel cuts her of by covering her mouth and he whispers "Do not say his name" "Okay then, next time your butler can do this" she corrects herself earning a nod, we she finally leaves the room she bumps into Sebastian "He's asleep" she says and the demon says "Right then, with everyone asleep I can begin to train you, outside".

The next morning Ciel is woken up by Sebastian "Young Master we're expecting a guest this evening, you also have dance lessons and piano lessons and you have to study" he says making Ciel groan "What happened to your hair?" he asks his butler who simply smiles "You made the right choice accepting Undertaker's request, Flare nearly beat me with a sword" he says and adds "I told her to rest up and that I will send Mey-rin to wake her up later". Ciel nods as he gets ready for the day and he asks "That reminds me Sebastian. I though Aunt Francis would come by today, did she call?", at that moment Flare walks in, a nasty cut on her cheek and shoulder "Ciel, someone's at the door" she says and both Sebastian and Ciel look at her "Lizzy and her mother" Flare mumbles and the two hurry downstairs "From the looks of it you two just woke up" Francis says and Flare bows politely "That would happen to be my fault, Sebastian was teaching me how to cook until late and the young master was watching, stating he'd be interested in how it went" she says and instantly the woman turns to her "Ah the new servant Elizabeth told me about, let me see" Francis says and Flare sweatdrops "Let's see, your hair is too messy, Sebastian hand me a brush", the butler comes back with a brush and within seconds Flare's messy black hair is put in a high ponytail, this would be an interesting day "You two, comb your back!" Francis says and Ciel sweatdrops "Young Master it'd be wise to listen" Flare says making Ciel sigh "It's weird having someone around my age call me that, please address me by my name" he says earning a slightly confused nod from the girl "Sebastian, prepare some breakfast with Flare" Ciel says and the two bow before leaving.