AN: Layman here. I don't quite know where this idea came from (Effin' plot bunnies!), but for some reason it seemed like something I should follow up. I guess maybe because I have a sneaking admiration for the Horror genre.

Anyways, think "mistaken identities" when you're reading this, and that's all I'll say about it. Enjoy.

Another day, another night helping my sister with her math homework, Yagami Raito thought for the upteenth time this month, and counting.

His sister, Sayu, was a few years younger than him, (she only just started college this year), so she still didn't quite understand all the higher math that was required. Math was always her Achilles heel, but by the same token it was one of Raito's strengths.

So here he was again, when he could be out with any one of the many girls in his school who were interested in him, such as his girlfriend Takada Kiyomi, and others (he was always rather good looking, there was hardly a day when at least one girl didn't come up to him and say so). Or even working on an extra credit project for one of his other classes, working closer to graduating a year earlier. But no, he had opted to take on the role of a tutor and help his little sister.

For two whole months, now.

Plus, he couldn't get out of it, no matter how much he wanted to. The longer this went on, the more she improved. Not in leaps and bounds, mind you. Just enough for her to keep coming back for more.

This is how this story starts....

"Are you sure you understand everything now?" Raito asked.

"Yep," she said in her usually cheery voice. It was hard to tell whether she actually did get it or was just saying she did because she was bored. Oh well, if his parents didn't chew him out when she brought home her next test paper, then any worry had until then would be moot. She looked at him sweetly and said, "Thanks, Nii-chan, I really appreciate the help. College math is a lot harder than I thought it would be."

"What'd you expect, it's college."

"I know, but you always make it seem so easy. It's almost like there's someone else doing all the work, wearing your body."

"Okay, that's not the least bit morbid," he muttered under his breath. He quickly shook himself out of it before she noticed and said, "Just remember all this tomorrow. If you have any other questions..."

"Don't worry Nii-chan, I won't bother you any more. Just do whatever you want for the rest of the night." She flashed one of her pattented smiles and left his room, presumably to finish her homework by herself.

For the rest of the night he mostly stayed in his own room, only leaving it a few times to get snacks. He finished an essay he was writing for his civics class, then decided to spend the rest of the night with a good book, knowing that tomorrow would bring with it a fresh set of trials and tribulations.

Fortunately, he couldn't care less about what would happen tomorrow. He was in the middle of a gripping Stephen King novel someone had recomended to him.

Normally he wasn't really into Western authors, (even though he could read English well), but he was open minded, so he'd decided last year to read at least a few in his life.

Eventually he put the book down and settled into his bed for the night, feeling satisfied with his day today.

The next morning, Raito got off the train and headed for his campus. Sinse he lived fairly close to the college he was attending he never felt the need to live on campus. Sure, he was usually out a few bucks, but it would cost more to live in one of the campus provided dorms or or an apartment.

Besides, he couldn't take the chance that he'd end up with a terrible roommate.

"Hey, Raito, over here!" Ryuzaki Lawliet called. He was the one who suggested he read Stephen King.

"Hey yourself!" Raito called, heading to intercept his classmate and one of the few people he actually considered friends. "What's up?"

"Actually, I have a message for you. From Takada."

"Really? Come on, L, tell me what Kiyomi said." "L" was a nickname he had given his friend ewhen they first met, and it had stuck to this day.

"She said to tell you that she was feeling sick and probably won't be around for a few days."

"You mean she told you in person? Why didn't she just call me on the phone herself if she wasn't feeling well?"

"I saw her coming out of a drug store on my way here," L explained. "I'd just gotten a pastry or something from a bakery and I saw her coming out of a drug store on the other side of the street holding a perscription bag. The bus stop was over there, and her home and the college are on that same route, so I guess she must have recongnized me or something and told me to tell you that she was sick." L's exspersion then changed to one of scrutiny. "I was actually rather surprised that she recongnized me, seeing as how you never hang out with the both of us together. Are you hiding something about her from me?"

"No!" Raito shouted indignantly. "Besides, even if I tried you'd probably figure it out right away." He grinned and gave his comrade a playful nudge with his elbow. "Mr. World's Greatest Detective!"

"Come on, you know I don't like that name. Boy, you solve one 'unsolvble' internet contest...," he mumbled.

"It's not just that; remember when we helped my dad with one of his cases?"

"I remeber just fine..."

"You helped locate a crimial that the NPA was trying to find for months. Don't tell me that was due to divine intervention."

"It might have been," L said, taking a bite of somehting that looked suspiciously like a cupcake.

"OK, you really have to cut down on your sugar intake; you'll be fat before you're twenty-five!"

"Please," L scoffed, "I don't eat that many sweets."

"You're eating something sweet every time I see you," Raito said, his voice and face emotionless. The emotion returned when he said, "You look like you haven't slept in weeks!" Raito pulled his friend over to a window and showed him his reflection.

Sure enough, L was starting to look like a zombie. His eyes were wide open, with bags and dark circles common to sleep deprivation. On top on that his hair had always seemed to be slightly unkept for as long as he'd know him, so that didn't help much.

"It's not that bad," L said.

"You know what," Raito said, throwing his hands up in defeat, "I give up! There's just no reasoning with you. I'll see you later, OK?" he said as he headed off to his first class.

He was so distracted by the conversation he'd had with his, 'unique', friend that he didn't realized he'd bumbed into another student until he was on the ground, rubbing his sore backside.

"Oh man, I'm so sorry. I didn't see you there. It was completely my fault," he stammered, picking up the books that had dropped. He himself used a tote bag.

"Don't worry about it," the girl said in a high-pitched voice, much higher than he would have expected for someone her age, "this happenes all the time. I guess sometimes I'm just off in my own little world!" she chuckled. "I'm Misa by the way, Amane Misa." She held out her hand.

"Yagami Raito," Raito said, returning the gesture. "I haven't seen you around before, did you transfer?"

"Actually yes, I just transfered about two weeks ago" she said.

"Your not hurt, are you?" he asked.

"No, I'm fine," she said with a wave of her hand. "I told you this happens all the time. I guess I've built up an immunity to it." She gave a goofy grin and shrugged.

"Well, as long as you''l be OK..." he said, and started of towards his class again.

"Wait," she called after him, "I have something to tell you!"

"What is it?" he asked, stopping ot let her catch up with him.

Suddenly a sweeping change came over her. Her voice became serious, her smile disolved, and what had just moments before been a cheerful, bubbly girl, now was something else entirely. Maybe it was the whole Goth-Lolita image she had, but Raito was actually starting to feel scared.

"If you want to live, get away soon," she said, her voice having an air of menace to it. "By now!" she called, her voice returning to normal.

Author's Note; Layman here, at the end of the first chapter of my second M-rated fic.

A couple things you might want to know about this one. First of all, it's only rates M for violence and paranoia. No smut, Lemon, or foul language. That's not the way I roll. And let me tell you, it will probably get very bloody violent in the later chapters.

Second, there isn't really going to be any shipping in this story, so don't get the wrong idea about the L/Light scene in the middle. That's another way I don't roll. Just FYI.

Finally, I'd like to thank caveat lector for getting me in to Death Note fics! "Goodnight Sweet Princess" is a very good story of his that you should really check out if you haven't done so already.