Flandre Scarlet is a magical girl vampire and younger sister of the Scarlet Devil Mansion's mistress, Remilia Scarlet. Her ability lets her destroy anything and everything. She is over 495 years old, but she has spent most of that time in the mansion's basement, so she isn't the best at dealing with other people. However, she's very good at keeping herself entertained.
Flandre was concerned. Her favorite toys kept breaking. Remilia always got her new ones, which she was happy about, but after playing with them for a while, she'd see the toy's "eye" and squeeze it. This would immediately cause the toy to break. As she was imagining what it'd be like to have a toy that would always stay by her side, she looked out the window and saw...
...a Remilia from another world flying under the stars. Perched on her shoulder was a stuffed toy resembling a parallel-world version of Flandre. That gave Flan an idea.
"If I was a toy... I'd want to play with me forever."
Toys break easily, but Flandre doesn't. This Remilia clearly takes good care of her toy, and to Flandre's eyes, it looked like the best thing in the world.
"Hahaha! I know just what to do!"
And with that, Flandre stepped outside for the first time in days.
"There you are! Big big sis!"
Flandre happily greeted the intimidating noble lady in a black coat. The lady blinked in confusion as she turned around before quickly regaining her composure.
"Are you talking to me? I'm the managing director of Scarlet Holdings."
"A director?"
"That's right."
"Does that mean you're super important?"
"Yes, I'd say so."
"Then... will you grant my wish?"
The noble lady hesitated before replying.
"It depends... but I should be able to grant most of your wishes."
"Gimme that me on your shoulder!"
The lady was completely taken aback by Flandre's sudden outburst.
"B-But she's a precious reminder of the sister I left at the edge of fate..."
"Aren't you gonna grant my wish?"
Seeing the dangerous glint in Flandre's eyes, the lady sighed and handed over her doll.
After that, Flandre managed to secure many more dolls of herself. As she lay on her bed, surrounded by Flans, she laughed at how everyone gave her what she wanted. The Remilias from other worlds were reluctant to give away their dolls, but in the end, they all succumbed to Flandre's unspoken threats and the persuasive promise that they could come see her and their doll whenever they wished.
Satisfied with a hard night's work, she happily drifted off to sleep surrounded by her toys. In her dream, the Flan dolls all started moving about on their own.
"Hahaha, so many mes... Now, I'll always have someone to play with..."