Adrien Agreste came out of his bathroom. He heard a noise of surprise, and could have sworn that it was Ladybug, as he saw a blur of red and black zip across his bedroom and out the window.

"Looks like your lover decided to pay you a surprise visit!" Plagg cackled.

"More like deliver a letter." Adrien suggested, picking up the letter she left on his bed. "It's from Marinette. That doesn't make a lot of sense. If Marinette wanted to bring me a letter or tell me something, she could have rather than Ladybug."

"Maybe Marinette was really busy and gave it to Ladybug to deliver it to you."

"Really busy?" Adrien asked. "I'd have to ask Alya or her parents...for now, I guess I need to read this."

He opened the envelope gently and set it on his desk, and unfolded the letter.

Dear Adrien,

You might have a hard time believing this because of how I act around you. But take my word, everything in this letter is true.

I didn't know about you at all, even when I started admiring your father's designs, until Chloe told me about you, so I think I have to thank her, despite how she treats me.

At first glance, I thought you were like her; snobby, bossy, and annoying. But when I gave you a second chance, I learned that you were a well-mannered boy. As I got to know you more, I quickly fell in love with you.

I've always tried to tell you, but I always chicken out. It's gotten more difficult with Kagami and Lila around, so I'm having Ladybug deliver this letter for me because I can't even do it myself.

I know it seems like I don't like you. I always avoid your view, talking to you, and seemingly don't want to hang out. But that's only me hiding my feelings for you.

You deserve an explanation, so here it is. I don't know how you're gonna feel, but I'm hoping that you at least consider returning these feelings.

Adrien's eyes widened.

"What?!"

"Dude! Chill! My ears are hypersensitive and I'm right here!" Plagg yelled at him.

"Sorry, but a million things just got added to my head! Marinette's been in love with me all this time! And I saw it as a disliking towards me!"

"Yes, you dummy! You did!"

"Why didn't you tell me, Plagg?!"

"Because I'm merely here to give you the powers to protect Paris. I am not your social counselor."

Adrien rolled his eyes. "Gee. Thanks."

"You are not welcome."

"Brat."

Adrien sat in his computer chair. "I have tons of girls clamoring after me. There's Kagami, Lila, and now Marinette. I really want Ladybug, but she's in love with someone else."

"Then move on. Your tenacity is a little out of control. Lila's a liar, and Kagami loves you, but why? You don't know. Bakery girl just poured her heart out to you on a piece of paper. I say you choose her."

Adrien chuckled. "I wish that I could just fall in love with her like I did with my lady. But the two are completely different."

"Why don't you imagine her as Ladybug then?" Plagg suggested, then cringed as he remembered the whole secret identity thing.

"I don't want to do that, either. That's seeing Marinette as someone she isn't, and putting her to someone else's standards."

"You're right." Plagg agreed.

"But that makes me wonder if Marinette is Ladybug."

"How could that be possible?"

"You know her true identity."

"You can't make me admit it, not with cheese or stinky socks. This is something for both your goods."

Adrien sighed. "I get it...but let me think. As Marinette, her self confidence seems low and she's clumsy and easily flustered. As Ladybug, her self confidence is up, she's graceful, and fearless. When there's an akuma attack, Marinette leaves just like me, or arrives late like me. We've both fallen asleep in class from night akumas."

"That letter she found on Valentine's day was meant for Ladybug. Marinette must have found it and replied to it, thinking that it was meant for her. Marinette's hair is dark as night. Darker than Ladybug's, in fact. Should I go with the assumption that Marinette is Ladybug?"

"Uh..." Plagg gulped.

He wasn't supposed to find out!

"I'm gonna go with it. I'll talk to her sometime soon."

"I-" Plagg started. In the blink of an eye, Adrien had his phone out, texting Marinette.

•••

Marinette was shaking, from head to toe, as she slowly walked to the Agreste mansion. It wasn't from the pouring rain. It was from the fact that Adrien had called her there to talk about the letter that Ladybug left. The letter that Ladybug left.

It was technically Marinette's letter, but he specified how Ladybug left it.

"Are you okay, Marinette?" Tikki asked.

"Okay?" Marinette asked. "No. Do I look okay? Adrien saw me leaving his room. My identity is at risk. Putting Paris at risk."

"You argued with me that you could escape his room without being seen, but you did. Now you're facing the consequences."

"I know...how could I be so naïve?" Marinette sighed. "I hope I don't cause him to ever get akumatized...otherwise, I'm screwed."

"You're right."

Marinette felt something collide with her whole body. Her head snapped up and she looked to see what she'd crashed into.

Oh.

It was the gates of the Agreste mansion.

Without seeing the security camera come out or hearing a voice, she saw them open and sighed.

"No turning back now." She told herself as she moved forwards, towards the door.

•••

"Adrien, you have a friend here to see you upon your request." Nathalie announced.

Adrien quickly turned his phone off and looked at his bedroom door to see Marinette standing there.

"Oh. Right. Thanks."

The family assistant left the teens alone. Marinette stood at the door, frozen and silent. Adrien watched her for a minute, anticipating her to move or say something, but she didn't, so he brought her to his desk.

"Are you okay?" Adrien asked.

"Yeah. I'm fine." Marinette lied. 'You probably know my secret identity and I'm screwed if you get akumatized. I've lost lots of sleep about this! My life's wonderful, how are you?'

"If you say so. I won't press on about it. I'll just get straight to the point. I called you here because of a letter that Ladybug left on my pillow. It was from you. Confessing your feelings."

"Yeah."

"I've honestly been in love with Ladybug all this time...not Kagami. Not Lila. Not Marinette. Ladybug. Well, the girl under the mask that I'm assuming is you."

"Yeah..." Marinette rasped. "I was so naïve that day. I let my feelings for you overtake me. I shouldn't have done that. Now if you get akumatized, then I'm done for."

"Well, I'll try not to get akumatized, if that helps anything."

"You can't tell anyone about me."

"Huh?"

"Ladybug's identity is supposed to be a secret. You can't tell."

"I'd never."

"Thank you...now if you don't mind, I have somewhere to be."

"You don't wanna talk about the letter?"

"I have a lot on my mind. So no, I don't want to." Marinette snapped, and abruptly left his room as quickly as she'd entered. Adrien dared to follow her.

"That was quick." Nathalie commented. "Leaving already?"

"Yes." Marinette said, masking her emotions of frustration and sadness. Her emotions of negativity.

Negativity.

"Would you like a ride home?"

"No thank you." Marinette said. "I'm okay. Thank you for letting me see Adrien."

"You're welcome." Nathalie said. She quickly went to Gabriel's atelier and down to his lair. "Sir, Marinette seemed to be distressed-"

"I'm aware. I have sent out an akuma."

•••

Tikki sensed the negative energy outside. When Marinette was out of the mansion, covered by her umbrella, crying, the kwami took the earrings. Marinette was so enveloped in negative emotions that she didn't notice the absence, nor the akuma until she heard Adrien yelling her name, a bright neon green flashing light, and his cataclysm oh-so-close to her face.

She screamed and put her umbrella in front of herself to avoid the murderous power. She felt no pain radiating through her.

Just the purple outline of a butterfly around her eyes.

And her worst enemy's voice in her head.

"Redo, I am Hawkmoth. I am giving you the power to go back in time, and perfect your mistakes. In compensation for me granting you this power, you will retrieve the black cat miraculous and the ladybug miraculous."

"No. No. No, no, no! Marinette, fight it!"

Marinette dropped her umbrella, clutched her head, and fell to her knees.

"Marinette, please!" Chat cried.

"You are Ladybug! Only you can do this!"

"Paris is relying on you."

"Bugaboo!"

"My lady!"

"I can't ever fight you."

"We're a team, aren't we?"

"We're Ladybug and Cat Noir."

"Unstoppable."

"Let me make this promise to you!"

"Marinette, fight it!"

"Cat Noir! Destroy the umbrella!" Tikki exclaimed.

He looked at the akumatized object on the ground, bent down, and destroyed it. The akuma flew out. Marinette's head was cleared. Her face was cleared. She looked at Cat Noir, not knowing what to say.

"I can't ever fight you."

He gazed back at her.

"Kitty."

"You and me against the world."

"Adrien!" She cried, and leapt into his arms. He squeezed her tight as she just sat on the ground with him, crying and sobbing. "W-we weren't supposed to k-know."

"I don't care about that right now. Are you okay?"

Marinette looked back at the akuma. "I don't know. I just almost got akumatized. I've basically been rejected. Hawkmoth knows your identity. Maybe mine. We're in danger, our family is, our friends. Paris. Master Fu."

"We'll figure it out, my lady, I promise." Cat said. "I mean it when I say I love you. I've meant it all this time. For the girl under the mask. For you."

Marinette blushed a little and smiled.

"I love you too, kitty."

Cat Noir stood, bringing both himself and Marinette to their feet.

"We screwed up. But it doesn't mean that we're done fighting."

Tikki handed her her miraculous.

"You're right, kitty." Ladybug said. "After all, this might make our job a little harder and a little easier."

"Mm hm." Cat hummed. "You and me?"

"Against the world, kitty."

"Unstoppable?"

"Unstoppable."

Notes:

Hi guys, thanks for reading the prologue of Unstoppable! I'll be back Friday, November 15th with Chapter One. Check the reviews for FAQ and my profile for rules concerning PMing me and/or leaving a review. This fanfiction belongs to me right now, and you aren't allowed to post it anywhere else unless you ask me first, then credit me. If you PM me and I don't reply within a week, go ahead and post it, but make sure to credit me and leave a link to this fanfiction. Same goes for translated versions (don't worry about translating the PM to english, I'll use Google Translate). You're welcome to share it on social media networks by leaving a link.

See you soon!