Important Note; SO! This is basically me redoing the fanfiction I wrote back in 2015. I'm redoing it now that I have more writing experience, so I hope it'll come out much better this time around.

Enjoy the wild adventure – if Beyond Birthday was involved in the Kira case.. Would things have changed? Or would everything stay the same?

Rated T for obvious reasons

L Lawliet sighed. The word's greatest detective, who had so much on his plate, never allowed himself any time to waste. And here he was now, too busy – or perhaps lazy – to get up for another slice of strawberry shortcake he'd been craving for over an hour now. Usually Watari would do this, but he was currently out and L knew, logically, Watari wouldn't rush all the way back just to retrieve some cake from the fridge only in the next room.

As he was about to finally give in to his desires and rise from his seat, the intercom beside him buzzed a small but noticeable red light, indicating that L had received a new email from Watari. He wasn't nervous, not until he checked the message anyway.

A man with a name he couldn't easily forget.

Beyond Birthday.

He was spotted on a nearby street camera.

L knew of his escape from the mental institution they'd held him in not long ago, but he was confident that Beyond couldn't possibly track him down. A normal person, yes, but not L and Watari. They were probably of the two most careful people in the world, impossible to track. So how could Beyond be so close by? Was it really coincidence? Or Beyond even more of a genius than L could've ever given him credit for?

A sick feeling rose in his gut.

He'd never admit just how much Beyond Birthday truly effected him. How the sound of his name alone send shivers down his spine. How L was so unaffected by most horrors due to all the crime and evil in the world he was surrounded by on a daily basis, but with Beyond... It was the only true guilt he felt in his life. The only true fear he couldn't shake. Almost like he knew, deep down, if Beyond wanted to... He could very well endanger L's life. And there was no doubt the serial killer absolutely wanted to do just that.

Unfortunately, L couldn't resume his previous work. Not now, anyway.

His attention diverted from what he was currently working on, now on to all the data he and Wammy's Institution kept on Beyond Birthday. Any and all help he could gather, to capture the younger male.

Beyond Birthday. BB. B.

The self proclaimed "world's greatest serial killer". The one to best L - The one to be the best – was currently on foot.

He was close, he knew that. It was like he could feel L's tension in the air. Smell the sweat. Taste the fear. L could never admit it, he knew the detective was way too proud for his own damn good. But Beyond made L anxious. Which was a very good thing.

His old, beaten up black converse walked down the dark and dirty side streets. Beyond wasn't used to areas like this, so much more privileged than anywhere he was used to hiding away in. Sketchy motels, abandoned homes and warehouses were really the only places he could afford to crash in – never the same place for too long, waiting a long while before hitting the same city twice.

Since the Los Angeles cases – which seemed like almost forever ago to him – he had one goal.

L.

Find him. Kill him. Beat him. Destroy him.

Years ago during the cases, he was obsessed with creating the only case in the world L could never solve. Driving L just as mad as L made him all these years. If he killed those people, ending it off with himself as the last murder, L would never have anyone to convict. L would never be able to truly close the case. It'd always remain a mystery. And that would kill L. Devastate him worse than actually murdering the detective – though he definitely wanted to do that as well...

But that didn't work out.

It wasn't as if L himself destroyed Beyond's plans and ruined it all. He didn't solve the case. No. He had his proxy do it.

Naomi Misora.

She was the one to act in L's shoes. She followed his orders. She solved the case for him. And that drove Beyond even crazier than he'd ever been, which was certainly saying something.

So now, there was no time for a new elaborate case. Only for killing. Killing L specifically.

He touched a hand to the burn scar on his face, one of the many covering his body, just thinking about all the pain he'd endured. Setting himself on fire... His body and skin completely engrossed in the bright orange flames. All for no reason. Just so he could survive. He never wanted to survive.

Now he was left with regret, anger, frustration, and an intense fear of fire.

If Beyond's deduction was correct, he'd finally pinpointed the exact location of L's temporary headquarters. He wasn't dumb, and he knew the detective surely changed locations often just like he himself did – though probably not as much. He couldn't help but smirk to himself as he pictured L's shocked expression, no doubt by now he'd know of his escape. He wasn't going to kill L off right away. Maybe in the end, but B's plan was first to toy with L. Play with him just as L did all these years without a care in the world for how his successors felt. And the very thought of all the possibilities he could imagine just reminded B of how excited he should be for what was to come.

A while later Beyond finally arrived. To most, it might appear to be just your average wealthy hotel, but Beyond knew better. This had to be it.

Beyond had broken into numerous victims' houses before this, and although it would be more of a challenge, it wouldn't take him long.

He made his way into the building, finally passing all the security steps L made sure to have set up. His all black clothing made it easy for him to blend into the shadows, since the whole building excluding the room L was in was dark. He looked down the hallway to see a light shining past a closed door. B grinned wickedly and slowly made his way over, his hand gripping the knife in his sweater pocket. Not to kill L, but for self defense. And maybe to scare him, just a little. To Beyond Birthday, this was the second most fun game he'd ever played and one he'd be sure not to lose.

As L stood, he felt a sharp feeling in his chest. One unnerving... Like he was being watched. His eyes darted to the side, head remaining still. But he couldn't sense movement, only the feeling of another presence that wasn't Watari's nearby. Maybe he could chalk it up to simply paranoia... But L couldn't shake the feeling.

L walked towards the hallway, making sure to stay as silent as he could. He was very capable of self defense, and his life was on the line already everyday... So it wasn't as if that was the problem. But it always made him feel more secure to have Watari, or any sort of backup, nearby – which wasn't the case right now.

B made sure that he was behind L as he walked, but not so close so they wouldn't touch. He waited until L went into the bedroom, and his hunched over posture noticeably relaxed a bit. Usually L was constantly on guard... It was odd to see his guard lower, even if only for a moment.

L slowly lowered himself into bed, taking a seat on the edge. He froze, as if still subtly trying to listen for any signs of an intruder. Once several minutes passed, Beyond figured L wasn't going to give up. Clearly, the detective had more spare time to throw around than he imagined. So, with an eye roll, he cleared his throat.

L's head whipped around, almost comedically.

"Who's there?" His voice was fighting to sound stern and threatening, but Beyond could only laugh. L's eyes were clearly squinting and fighting to make out who Beyond was in the dark.

A huge grin spread on Beyond's chapped lips. He whispered his name, just to toy with him a little more.

"L Lawliet."

L's eyes widened.

He knew it.

"Beyond...?" He called out just a bit more timidly than his previous words. L's mind raced with possible escape plans, his body slowly moving into a position he could jump up and fight in.

Beyond chuckled, voice still low and intimidating.

"You catch on fast... It's been awhile, wouldn't you say? L?"

Beyond spat the detective's name, displaying his disgust clearly in his voice. The tone he had was playful and smug as always, but with an underlying tone of hatred. He stood in front of L, blocking his way to the door or even to the light switch. He didn't intend to let the detective get away that easy. Not after coming all this way.

L eyes hardened slightly as he looked forward. "It has been a while... Beyond. Wish we could catch up on old times, but I already know what you've been doing. So instead, tell me what you're doing here."

"Well, I knew you'd probably be trying to catch me on your own. But this time, I thought I'd turn the tables. I thought maybe I'd be the one to get to you." Beyond smirked. "Does that frighten you L? That I could kill you right here and now and be gone in a second?" He flipped his knife around between his fingers tauntingly as he spoke.

The detective eyed the weapon cautiously. "While I'll admit it's alarming... There must be a reason you haven't killed me yet. If this is just another one of your sick games, I'm not really keen on playing with you."

B shook his head, laughing. "Still no fun, just like always." He hissed.

He took a step closer, freezing his grip on the knife. "Maybe I am just going to play with you, L." The corner of his mouth turned up in a menacing smirk.

L scooted back away from Beyond. "I'm not in the mood, Backup."

Beyond's eye twitched at the old alias.

"The fact that you would still use such a disgusting name... Backup... Proves to me you never gave a shit. Not now, not ever.

I'm no backup."

Beyond glared. But he was only met with L's unforgiving stare.

"Give it up now, B. And your punishment won't be as severe."

"My punishment?" Beyond grinned sadistically. "You're going to punish me, L?" It took a lot of strength not to burst out laughing, but B kept his eye contact, for even looking away for a second would mess this whole plan up.

L growled, allowing his annoyance to show. "You know what I mean. The punishment for the crimes you already committed would add up and make your sentence worse."

B's eyes narrowed slightly. "No, L, that's where you're wrong. You see, I can't be punished if I'm not caught. And... I won't be caught." He stepped closer.

"You're coming with me."

L stood as Beyond stepped closer, taking a step back. "I will do no such thing."

That sentence was the last one he got to finish. In an instant, he witnessed Beyond move at an unnaturally fast speed towards him. Before he knew it, he was seized – pushed back against the wall behind him. Books and papers flew off the shelves as he was pinned, a cloth soaked in what was most likely chloroform pressed against his nose and mouth. L fought the urge to breathe, but it soon became too powerful to resist. Black spots danced across his vision, until it was all he could see. Slowly his vision became blurred, Beyond's wide grin and all fading to black.

L's head slumped against Beyond's forceful grip.

Everything going according to plan.

Beyond cackled, keeping a grip on L so he couldn't fall to the floor.

"Come on, sleeping beauty."

Almost carelessly, he hoisted the older male over his shoulder to quickly, and hopefully quietly, escape with him.