The words in italics are Marceline's cinematic records being played.
What started Marcey's and Lizzie's bitter relationship or rivalry happened two years later when Phantomhives and Midfords announce their youngest children's engagement, which is much to Marcey's disgust. However, the feud between the girls started when they both want Ciel's attention.
Obviously, Marcey steals most of his attention.
It was one sunny day as 10-year-old Marcey looked out the window unimpressed, seeing her brother playing with their mother, Madame Red, and Lizzie. The young mistress finds the blondie utterly annoying and decided to bake some sweets.
"Ciel!"
"Yes, Marcey!?"
"I baked some cookies for you! Come have some!"
"Ok!" the little boy ran towards his sister who was holding a plate of freshly baked cookies.
Ciel bit one, enjoying the classic taste of homemade classic chocolate chip his older sister made just for him; enough to completely ignore Lizzie.
Marcey knew how much her little brother adores sweets and desserts.
"May I try one, Marcey?" Rachael said.
"Sure!"
With one just one bite, Rachael became instantly amazed of how delicious her daughter's cookies are especially having proficient cooking skills at her age. Seeing Rachael's expression made Madame Red (or Auntie Red by Marcey) mesmerize for her niece's cookies and like her sister, she too, was astonished.
"Was it really that good?" Marcey said.
"It's very delicious, sweetie!" Rachael complimented, "I never knew you were so talented! Every bite of this cookie reminds me of how much you make me proud!"
"I'm jealous! Your daughter is just too perfect!" Madame Red said frowning, "if only I could…," she puts both hands on each of her eldest niece's shoulders, "have her…" she whispered.
"I'm sorry, Ann," Rachael sympathize remembering the tragedy.
"Don't cry Auntie Red," Marcey hugged, "I love you too."
Madame Red smiled.
She can never have any children of her own, but she can still regard Ciel, Marceline, Lizzie, and Edward as if they were her own. No child can be as loving and flawless as Marcey.
Xxx
The scene made Lizzie envious. She knew she can never defeat her older cousin no matter how hard she tried, but stealing Ciel's attention was very hurtful.
On her next visit, Ciel came with Noah's Ark in his hands and opened the ship to pull out the animals to play with Lizzie.
"May I play?" Marcey intruded.
"No! Absolutely not! You have to study!" Lizzie said in rage.
"My dad said there's no need. I'm already a genius and graduated when I was eight."
"Go away!" Lizzie threw a pig at her.
Marcey dodged it quickly.
"Well that wasn't very nice," Marcey said.
Bitch. She thought.
"Lizzie! You can't throw things at my sister!" Ciel said.
"Hmph," Lizzie said.
"I'll be right back," Marcey said.
She pointed at the plastic pig.
"And I am not cleaning that up!"
That whore needs to die right down to her vagina! Marcey thought.
Xxx
There's nothing cuter than having a cat in front of me. Marcey thought, petting the stray feline.
"It's too bad mom and dad won't let me, all because my little brother is allergic to you," she gave it treats.
"No matter how hard I try to keep a cat, I guess some things are never meant to be true."
For most of her life, Marceline would always attempt to get a cat whether it's on the streets or at the pet shop. Her unhealthy obsession got the better of her. Having fake cat ears isn't enough. Whether it's her birthday, Christmas, or shopping day, the first priority she only wanted to have is a cat. Nothing but a cat. And only a cat.
Her parents tried many ways to get her mind off them.
Things became worse when they bought a dog, whom they name "Sebastian", hoping to change their daughter's opinion. Alas, Marcey absolutely hates dogs.
Xxx
June 15, 1872
"Happy Birthday, Marceline!" everyone shouted.
"Thank you! I'm grateful for everyone, my parents, and family to celebrate my 15th birthday! I hope you all enjoy this wonderful occasion on the luxury cruise ship of S.S. Victoria!"
With that said, Marcey exits the room, heading outside to watch the starry night, glittering at the tip of the ship.
It's so peaceful. Marcey thought as the ocean breeze blew towards her.
"Big sis?" a familiar voice called.
"Hey, Ciel. Come here! Look at the stars! Aren't they beautiful?"
The little boy was caught in his sister's arms. She lifted him up to gaze at the stars twinkling, and then do his "king-of-the-world" pose. The mistress set him down and petted his head.
"I have a present for you," Ciel said offering a birthday present for her.
Marcey opened her gift revealing to be a large, golden locket with several photos inside and blank ones as well.
"It's gorgeous Ciel, I love it,"Marcey thanked her little brother.
The little boy smiled in awe and hugged his sister's legs.
BOOM!
"What's happening?!" Ciel shouted.
The ship tilted left separating the siblings.
"I've got you!" Vincent caught his son.
It was not long after several explosions pop out on the ship randomly causing passengers to escape to the lifeboats.
Vincent stood up, ensuring his family is safe until he discovered his daughter was missing.
"Where's Marceline?" he panicked.
"Dad!"
He was horrified to see his precious daughter hanging onto the rail at the tip of the ship as flames engulfed below her.
"Oh shit! Let me go!" Vincent struggled.
"It's too late! She's gone for good!" the captain restrained him, "We have to get out of here!"
"There's no way I'm leaving my little girl behind!"
"You fool! Look!" the captain warned Vincent, "if you try to go after her, you'll get eaten alive by those bloody sharks!"
Vincent was stubborn, but when he managed to break free, it was too late. A deadly explosion bursts where Marcey was hanging presumably killing her. The loss of his eldest daughter broke the family into tears.
Xxx
On the same shore he and his sister stood to watch the sunset, Ciel gently placed a little glass bottle with a message inside to set sail across the horizon, hoping that his wish came true as part of the memorial to his beloved older sister.
The Phantomhives pay their respects to their heiress.
Hoping the possibility of Marceline's survival, Vincent visits the Undertaker. He cried tears of joy to learn that his daughter miraculously survives.
"I heard rumors of a purple-haired girl roaming somewhere in Japan with another girl who looks strikingly similar to her. She's suffering from amnesia," he took a bit of his cookies, "Overall, she's alright. It's a shame that I can't put her into one of my special coffins," he joked.
"Thank god!" Vincent was relieved.
Xxx
The lord spread the wonderful news to every single person in the manor. Joyous of their beloved mistress's fate, Vincent writes a letter to the wealthy nobles in Japan who Marceline is staying at with her biological sister to bring her back to England.
However…
On Ciel's 10th birthday, almost everyone in the Phantomhive manor was slaughtered by the same organization who abducted Marceline for ritualistic needs.
Like his sister, he went through the same experience as her until, this time, contracted with a demon, swearing to take revenge on those who humiliated his family's name.
To be continued… again…