"Everyone, this is Tora–Tora Miubasa. She helped solve the Kurosaki and Honda murder cases a while back. She will be joining this investigation now as my partner. Up until now she has been acting as a vigilante, collecting information and making deductions by herself. These deductions, in fact, are the very same ones I have made myself. She too suspects Light, Mr. Yagami."

The tall, slightly greying man at the back of the room utters a cry of outrage. "What did you say, Ryuuzaki?!"

"That she also believes there is a possibility Light could be Kira." L continued smoothly.

"I thought that was what you-"

"- You must always answer to her as you do to me, however if she and I disagree on something I am still in charge of this investigation and you must believe my opinion to be truer." he cut across, silencing Mr. Yagami. "any questions?"

The dimly lit room stays silent, the detectives regarding me with an air of interest and doubt. I try to smile warmly, something which isn't easy to do when you feel like your stomach's turned to lead.

"Good. Well, now that everyone has been, ah, acquainted, please resume work. Tora-san, if you would like to follow me, I have something to show you." says L, turning to exit through a doorway to the right.

The room we enter is small, with the same formal carpet and wallpaper as the larger room, complete with a chandelier which looks most out of place in such an enclosed space. Taking up the majority of the space is a metal filing desk with a computer and four monitors, each displaying the same screen saver of a black "L" in Gothic font on a plain white backdrop. A futon is slung into the corner with a few unmade blankets and pillows, and in the other corner is a large, ornate armchair beside a small coffee table and lamp. The only source of natural light would be through a tiny window at the end of the room, were it not covered by dusty looking curtains and Venetian blinds.

"This is my private office. The only purpose it serves is to provide me with somewhere to work separate from the other detectives, should I need to work without disturbance. I can also get an hour or so's sleep if it is necessary. You are free to do the same; this is both of ours now."

L sits in front of the monitors with his legs tucked up and looks at the screens, waiting for me to respond.

"Oh! Really? You would really be willing to share your office with me? Thank you Ryuuzaki!" I say, grinning at the now considerably brighter-looking room. "Um... but, if I am to stay here at headquarters, shouldn't I at least retrieve my belongings to put somewhere safe, let alone buy a laptop to scan and save all my research onto?"

"Yes... I'll have someone look after your apartment and belongings for the duration of this case. And in regards to the equipment, I have already had that taken care of, a laptop should be arriving in about 20 minutes, along with all the paperwork and files you have collected that we don't already have archived – a surprising amount, actually. You can set up over there, if you want." says L, indicating the large, cushioned armchair and mahogany coffee table.

"Thank you, Ryuuzaki, you're the best!" I say, running up to him and hugging him around his shoulders. L grips the arm of the chair to avoid being toppled over and says "Well, I should do this more often if you react like this"

I giggle and release him. "So, what would you like me to do whilst waiting for the laptop?"

"If you look at the screens, I have some evidence here which you have not yet collected, and it would probably be useful if a fresh pair of eyes looked over it." He says, readjusting himself in the seat and opening a few files containing death certificates of criminals, a few claimed Kira sightings and some snippets of suicide letters and photographs.

"Oh, but before we begin, Tora-san-"

"Please, Tora-kun." I cut across.

"Tora-kun, we need to discuss codenames. As you know, my codename is L and my cohort Watari's codename is W. So, seeing as I already know your real name, it should be a letter disassociated with it. I was thinking K?" says L, turning to me.

"Well, actually, K would be perfect. You see, I changed my name a long time ago. The only people who know my real name are my sisters and my parents. My real name is, well … ugh... Its Kunai Tora Miubasa. So yeah, K would be perfect." I smile begrudgingly at him.

He looks me over for a second. "Thank you for telling me your real name, that must have been quite difficult for you. Yes, K it is."

At that moment, the door creaks open and a detective I don't recognise from earlier enters the room. He has long, unruly black hair, a young face and a rather nervous expression, and is wearing a black suit with a white shirt and thin red tie. He's evidently not expecting to find me, and is momentarily taken aback. He blushes slightly as his eyes slide across my long, bare legs and slender body, hovering on the very short leather skirt. I raise my eyebrows, amused.

"Matsuda-san, this is K. She is working alongside me on this case- you may call her Tora." I grin and wink at him, enjoying the effect as he blushes an even deeper shade of magenta. In his hands are two plates holding a slice of strawberry shortcake each, a large parcel tucked haphazardly under one arm.

"P-pleased to meet you, Tora-san. Watari sent me to give you this, and I also have the parcel containing the new laptop and Tora-san's files."

"Excellent, thank you Matsuda-san. Please put the cake down on the desk; give Tora-kun the parcel." says L, eyes now fixated upon the cakes.

Matsuda does as he says, his head down, and keeps me at arms length when giving me the parcel. I thank him and smile, and he scurries out of the room. I sit down in the armchair with the parcel, curling my legs up like a cat.

"That was fun" I giggle, tearing open the parcel with my teeth and extracting a pile of papers and a few folders which I place on the coffee table. L hands me the cake, and I take a large mouthful before ripping the last of the paper and bubble wrap off to reveal a shiny, new Macbook Pro.

We work far into the night. L, just sitting, concentrating hard, occasionally jumping and looking at a piece of evidence before sinking back into deep reverie, sometimes going into the other room to consult with the rest of the detectives; Me, scanning and filing rapidly, sleeping for an hour before going back to the laptop and writing so much code that the ends of my fingers hurt; The detectives in the other room discussing, arguing and pondering, their voices becoming cracked and strained, the occasional snoring as one of them falls asleep mid-debate.

At 7am I burst triumphantly into the larger room to find all of the detectives asleep, apart from L, who is sitting on the floor eating what looks like Mr. Yagami's unfinished shortcake from a plate in his lap. Watari is in the kitchen area with a steaming kettle and many mugs in front of him, busying away with powdered coffee and a spoon. L stops eating immediately at the sight of my beaming face.

"You look like you've had a breakthrough?" He asks, attempting casualness and taking another forkful of cake.

"You know how there is a greater than 70% chance that Kira has direct access to the police files without having to hack into anything? Well, I've been doing a lot of careful hacking and scanning and it appears that no one has tried to hack into the police intelligence since before Kira's time. This further supports our hypothesis. Now, taking this into account, Kira must have the files on his own computer or computer network. I have just successfully installed a keystroke monitor on Light Yagami's computer without aid of hardware or software, purely using my own created program. This way, if Light is Kira and tries to access police files, we will know. Also, in the unlikely event he guesses or discovers what I have done, if the police make significant breakthroughs and Kira's killing patterns and behaviour does not change then we will also have more grounds to believe Light is Kira. I understand that this will only become relevant if the police make a big breakthrough, so this is really only and interim measure. And, of course, added motivation."

L just looks at me, amazed. Even Watari has turned his whole torso in my direction.

"Tora... this is perfect! Now we are only one breakthrough away from proving or disproving Light's association in this case! Even if it is just an interim measure, it was a very good idea. Take a break now, have some coffee. Those fingers look painful." L says, standing up and brushing the crumbs from his white t-shirt.

Author's note: Thanks for the reviews, favourites and follows this has recieved! it makes me excited to see how well my first ever fanfiction goes down with people. I love you all!

-Qwerty