Disclaimer: I do not own Miraculous: Tales of Ladybug and Chat Noir or anything else recognizable contained within this fic.

A/N: I decided to join in on MariChat May because I'm actual trash! I thought I'd fill one or two prompts, but once I saw the prompts the makings of an actual story started growing in my brain. That being said, each chapter will probably be less than 1k each because my brain might actually implode if I try to write another long fic right now.

Summary: MariChat May 2018 collection. People were always saying that Chat Noir and Ladybug were complete opposites, perfectly complementary. But, when a series of unforeseen events leads to Marinette spending more time with her masked partner, she finds that they have more in common than she originally thought.

Day One: You're injured, please stay the night. Please. In which everything that can go wrong, does.

Fire & Rain

One: Murphy's Law

Marinette had plans. She was a planner by nature, even if, all things considered, her plans rarely went off without a hitch. As Ladybug, she was good at thinking on her feet when it came to using Lucky Charm, and people seemed to be under the impression that made her a master strategist. As Marinette, despite being elected class president three years in a row, she seemed to have earned a reputation for flying by the seat of her pants.

It was pretty unfair, actually.

The point was, she had plans. On where she wanted her life to go and how she would be able to get there. Overall, she was doing pretty well with her plans. In order to get scholarships for university, she worked hard until she was in the top five in her class and the top two percentile in her entire school. With Alya's help, she had started a little online boutique that took commissions so that she would be able to move out and support herself without her parents worrying about her upon graduation. She had even applied for an internship at Gabriel Agreste's company for the upcoming summer so that she could be that much closer to fulfilling her dreams of being a world famous designer!

She was doing well with her plans. . . except when it came to Adrien. Whenever she tried to confess or so much as approach her crush, it seemed as if all the bad luck in the world focused solely on her. No matter how carefully she planned their interactions, she would stutter and trip, or somebody would interrupt, or there would be an akuma attack. Anything that could happen to keep her away from her goal of dating Adrien, inevitably happened.

But Marinette Dupain-Cheng was not a quitter! And she was not going to finish the school year without confessing to Adrien. She meant it this time!

Alya had looked at her with an unfair amount of doubt when she declared that, but eventually her best friend had agreed to help. The perfect opportunity presented itself when their class was chosen to put on that year's school fundraiser and after much arguing, it was eventually decided they would hold a pop-up store/yard sale/artisan fair hybrid that Marinette would have to oversee. Unsurprisingly, when the time came to actually get through the tedious paperwork necessary for holding such an event came around, the only people that offered to help were Alya, Nino, and Adrien.

Then Alya had conveniently remembered she had a dentist's appointment the Saturday that they had agreed to meet up, and she needed Nino there because she was afraid of the dentist, hadn't she mentioned that before? It was such a shame, but hey, at least Marinette would still have Adrien to help her out.

It wasn't subtle at all, but luckily Adrien had only smiled and said she was welcome to come over to his house that Saturday evening. And so, Marinette moved one step closer to fulfilling her plans.

Of course, that meant everything had to go wrong before she even got to Adrien's house! The first thing was the black clouds rolling overhead as she walked to his home, without an umbrella, of course. She always managed to forget umbrellas. The second thing was the small heel of her white dress shoes breaking when she was forced into a light run. The last was the reason she was running: an akuma.

It was an easy battle, over quick, but not quick enough. By the time she swung away from her partner and any other prying eyes to drop her transformation, the heavens had opened up and released their fury on her. The bluebell sundress she was wearing was soaked so quickly and thoroughly that it was practically sheer. She couldn't show up at Adrien's house looking like that, and she was forced to limp her way back home to change and send an apologetic text to her kind classmate.

The rain didn't seem to be letting up any time soon, and she wasn't in the mood to run under the rain. With her luck, she would trip and crack her head on the pavement.

Marinette had barely stepped into her room when she heard a clatter on her balcony. Raising a brow, she walked over to her skylight and cracked it open to peek outside, expecting the harsh winds to have knocked over a flower pot. And then threw the skylight open with a shout when she saw the limp form of Chat Noir!

"Chat!" she shrieked, running to kneel beside him, forgetting for a moment that she shouldn't be so familiar with him. He had saved Marinette more than a handful of times over the years, but the experiences were brief and playful, there was no reason for her to really care for him. Well, a citizen could be concerned for a hero, couldn't she? "What happened?"

The blond grumbled something unintelligible and made to sit up, supporting all his weight on his left hand and struggling. Marinette placed her hands on his shoulders to help him up and immediately pulled back when he flinched away with a hiss of pain.

"Sorry," her hands hovered uselessly as she watched him sit up. The reason for his pain quickly became apparent. His right shoulder was visibly dislocated under his skintight suit and she winced, "What happened to your shoulder?"

The akuma didn't do that, but she couldn't mention that, of course. He offered her a too big grin, which clashed with the pained look in his eyes, "Funny story, really. I was running over the rooftops when the rain kicked up and I crashed into your chimney!"

Marinette's lips thinned, "That's not funny."

"It's a little funny."

She glared at his nonchalant tone, and after a beat he dropped his smile. Reaching for the baton she had just realized was lying against the shattered remains of a flower pot, he made to use it as a cane to stand, "I'll get out of your way."

"No, you won't!" Marinette huffed, not caring that she wasn't Ladybug at the moment and had no right to give him orders. Chat froze at the tone anyway. "You're hurt. Come inside and let me help."

He frowned for a moment before quietly nodding. It wasn't an easy task. Chat wasn't particularly heavy, though he was taller than her now, but every movement caused him pain and she only made it worse by hesitating so much that she made the four step journey to her bedroom last whole minutes. He did his best to not make a sound, but couldn't keep from crying out when he all but fell onto her bed.

"Sorry," she cried again, wringing her hands together.

"It's fine," he insisted, shifting his weight so that he was lying on his back. "Thank you, Princess."

Marinette shifted uneasily on her feet, before realizing that she wasn't doing anything to help like she promised. "Let me go get some painkillers! And ice! And. . . food? Would you like some food?"

"Some cookies would be nice," Chat smiled crookedly.

She couldn't tell if he was joking or not, "I'll go get you some cookies!"

She did her best to gather all the supplies as quickly as possible, but by the time she made it back up to her room, Chat Noir was snoring softly in her bed. Should she let him sleep? What if he had a concussion? How is she supposed to tell if he had a concussion?

Panic flowing through her veins, she resolved to wake him up, right until her eyes landed on the poster directly over his head. And the one across from him. And the one behind her. And the other two dozen or so Adrien posters she had collected over the past three years.

Right. Chat Noir's health was the most important thing, but she might strangle him if he made fun of her for her crush. First, she would take down and hide the posters. Then, she'd wake him up.

A/N: Adrien doesn't seem to find it weird how familiar Marinette acts with Chat Noir, but he probably should.

I'm already late, despite meticulously planning everything so that I could stay on schedule! Yesterday, I had to go fight my job's HR department because they tried to pay me not even half of what I was owed and that took FOUR hours! Then I went to a baseball game that I already had tickets to (I can't just throw away money) and they went to EXTRA INNINGS! The universe didn't want me to publish this on time.

But at least you get two chapters in one day. Yay, I guess? I mean, if you like it.

Let me know what you liked, didn't like, and what you thought could use improvement!

~ Destiny's Sweet Melody