A/N: So... I have two different SI-OC ideas for DCMK and here is one of them. I hope you like.
This is a bit of just ideas mashed together... especially in the later chapters. I have no idea how often I'll be updating this but I hope you'll leave comment anyways.
This and Little Shooting star have been posted to AO3 at first but then I thought about sharing these with you too.
1
Matsuda Naoto was an only child, born to Matsuda Taisei and Narumi. Her father had brother Shunpei who in turn had wife Mitsuki and son Jinpei.
Matsuda Naoto thought cousin Jinpei as her brother. They lived close by and the two cousins weren't that far in age.
Matsuda Naoto used to be someone else in somewhere else and had been reborn to this life.
The last fact didn't register for the longest time.
2
Naoto went to school and made friends but she liked most to spend time with Jinpei. So what if the boy was four years older than her, she was plenty mature!
Naoto picked up her first camera when she was ten years old and never set it down again.
She picked up her first gun under the careful gaze of her father when she was thirteen.
She never set it down either.
3
Jinpei met Hagiwara Kenji in high school. They became as close as brothers and maybe even more.
Naoto really liked the other boy too. And if there was something nagging at the back of her head about familiar names, she ignored it. This was her new life and she wanted to live it without regrets!
Year after Naoto started high school, Jinpei and Kenji entered the Police Academy. There they met with Date Wataru, Morofushi Hiromitsu and Furuya Rei.
Naoto forcibly swallowed the bile rising in her throat when she looked at them and smiled without averting her eyes.
4
The quintet graduated. Naoto brought Bird of Paradise flowers to them. They celebrated the occasion together.
Year later Naoto was snapped into reality then Kenji died in blaze of fire and she couldn't deny the facts anymore.
This was the world of Detective Conan manga. And there wasn't anything she could do to protect Jinpei.
But she could try and protect some others.
5
On the day of Kenji's funeral's, Naoto got into argument with Jinpei. It was half on purpose, half incidental. She had heard (and remembered) that Kenji died because the remaining bomber had triggered the bomb because of the police.
"Well, you are the police! You should've been screening the news broadcast and not let them use old and outdated footage!"
"Nao, even the police can't do everything! We were already running out of time and resources!" Jinpei argued back with clogged throat. Unlike Naoto, he wasn't letting tears fall. He should've. He had loved Kenji after all.
"Besides," Rei interjected and Naoto just knew she wasn't going to like whatever he was about to say. "Hagiwara was doing his job as bomb expert and…"
"And what?! He wasn't able to defuse the bomb! The residents had been already evacuated by the time the bomb went off! Kenji-nii died for nothing!" She rounded Rei. "For nothing, you hear me! Because you police officers weren't doing your job well enough!"
And with that she left.
6
Let them hate her. Let them not see real her.
Naoto had other things to do. She was lying on her stomach and aiming a sniper rifle at the targets at the other end of the range. One by one she hit each of them, shifting a bit when moving to next one.
After graduating from high-school Narumi had taken Naoto to Europe where they toured from one country to another before stopping to Finland. Country from which Narumi's mother was from.
And there SuPo – the Finnish Security Intelligence Service – contacted her. They needed a Japanese native young man or woman to infiltrate a Japanese underground organization that had been dealing arms to Europe through Russia. And some had found their way to Finland too. The organization in question was not a yakuza or a street gang gotten influential.
Naoto knew instantly what was it about and agreed to be trained and hired by SuPo. She was under the name Nelli Mattila on their lists.
She needed to do this.
7
Jinpei knew some of what she was doing. Not much but enough that he didn't pry. Their conversations happened through Skype so there wouldn't be any traces on his phone records for the organization to find. It had been decided early on that Naoto would not be using an alias when infiltrating since her face was quite known to the MPD. All the same, the air and pretense of hostility was kept up between the cousins.
Taisei and Narumi knew more but decided not to interfere with Naoto's choices. They trusted her. And they trusted her handler to keep her safe. They both moved out of Tokyo though, so they wouldn't even accidentally blow her cover.
Naoto's friends from school… she didn't have many that she'd been close to in the end. Perils of running after Jinpei and his friends… So they knew nothing.
Naoto was twenty-two when she moved back to Japan and began her op. She had a degree in photography and graphic design under her belt and she continued her membership on the shooting range Taisei had been taking her since nine years ago. She had only one contact aside from her handler in regards of her mission. And that contact was Hiromitsu, codenamed Scotch. The man was the only one to know that her scorn towards Jinpei and others was an act. The only one to know more than barebones of her mission.
8
In the end the infiltration itself was ridiculously easy. Naoto vandalized Hiromitsu's car with her keys, by drawing a string of little pictures that formed a message. The code had been derived from several mangas and put together in the quiet hours during Christmas holiday then the boys had been in the Academy.
Hiromitsu in turn texted her back with the same code, to the number of a burner phone hidden in her message, and gave her time and location of next 'sniper gathering'. Apparently the snipers of the organization liked to go to some shooting range together and have friendly competition and drinks together. Never the same place twice in a row, never in any specific timeframe. The next gathering would be on the shooting range Naoto used. And since they never hired the place for private function, she could freely go in there and shoot in peace for them to see her skills and report forward.
"I like your sass." Kya-san grinned. Her short orange hair and butterfly-wing tattoo under her gave her a dangerous aura and she had been the first one to notice Naoto.
"She has skill…" Koru-san said quietly and sipped his soda.
"Oi, you want to compete with us?" Karu-san asked. Naoto noted a pistol hidden in his ankle holster but said nothing.
"Maybe you should stop crowding him?" A long-haired man, the only one to give his full name, said from where he was still sitting in his seat with Hiromitsu. Moroboshi Dai. Probably the smartest one of this lot.
"Ah, it's okay." Naoto smiled awkwardly. "This sort of enthusiasm is refreshing."
She didn't even need to lie.
9
She was integrated into the organization during the course of the next six months. Naoto was more than aware that there was going background checks on her especially given the sometimes-pointed questions Chianti (Kya-san), Korn (Koru-san) and Calvados (Karu-san) asked her during downtime. Questions about her relationship with her cousin, about feelings towards the police, about her schooling while aboard, where was she working at now… Naoto never lied. She had been close with Jinpei but hadn't seen him in years and rarely talked. She was uncharitable with her words when talking about MPD. She had gotten her degree while studying in School of Arts, Design and Architecture. She was working part-time at a grocery store and courier-service while searching for more stable job that hopefully would be something to put her degree in use.
While it might've been her shooting skills that had attracted the organization's attention, in the end Naoto was more like jack-of-all-trades. She was delegated to work with Irish and as an occasional snipe guard for others. Actual assassinations hadn't 'crossed her desk' yet.
10
March. Naoto had been networking within the organization, both with codenamed and non-codenamed members. If she had been anyone else, it probably would've raised red flags but she just swum in and out of conversations with them. Offered and received help. Had frank and mischievous demeanor yet something honest with her. She avoided Gin and Bourbon. One for his general distrust towards everyone, one for her personal history. She also refrained from being too close with Hiromitsu – sorry, Scotch.
But Scotch was in danger. And it was three years too early for certain developments but Naoto had a risky plan for saving him.
Very risky.
She needed the Silver Bullet for it.
A/N: Next chapter is about the preparation, completition and the aftermath of Naoto's plans.
Since I can't tag things like in AO3 I'll ramble here a bit about things that this fic will include.
1. m/m, f/m, f/f and poly ships. If you want to know those beforehand, I can put them in the author note in the next chapter.
2. liberal use of APTX and deceiveing many, many characters.
3. Naoto's more than dubious life choices and canon characters regarding her unfavorably.
4. canon-typical violence and murders.
5. Spoilers.