Ever since young Soichiro had heard things.
Things that he was not supposed to know going on with his family.
Especially the mystery of his grandfather.
His grandpa had always been kind to him and everyone around him, but they still kept him away like he was the plague, as if his existence had bode ill to everyone else.
Being the young child that he was, Soichiro had been curious and snuck over to his grandpa's one night, the moon shining full and bright in the sky.
He crept through his grandpa's open window, snooping around and quite surprised to find that the elder is in fact nowhere to be found.
That was when he saw the one room that he hadn't thought to check.
The basement.
Soichiro found the keys after fifteen minutes of searching, climbing down the old wooden steps.
What he saw he could never forget.
Deep in the basement, there was a dark cell lined with stone walls and thick bars, fitted with chains.
Caught in the chains is a monstrous beast, its large form black against the gray walls, golden eyes shining from the inky depths of the room.
It growled and snarled, fangs and claws glinting in the dark as it rushed against the bars with a loud bang, a thick clawed arm reached for him from behind the bars.
Soichiro cowered and ran out of the house in fear, later realizing with a sinking horror that the creature had his grandfather's wedding ring on its finger.
That was the secret of his bloodline, his father told him everything that he needed to know. Soichiro never visited his grandfather after that, up until the day he'd passed away.
Years later, Soichiro found that he was going to have a son.
The fear that enveloped him when his grandfather was alive had gripped him then, as males that had his ancestor's blood had a higher chance of getting affected by what his family deemed 'the curse'.
His baby boy was then brought into the world and Soichiro was even more fearful when he saw that the boy had golden hues in his eyes much like his grandfather had.
He was slightly relieved when Light's eyes lost some of its bright color when he grew older.
His fear grew as the boy neared his sixteenth birthday, unknowing of 'the curse' that might grip him once he hits that age.
Alas, his birthday passed without incident and Light remained as good and brilliant as always. Being the dutiful son and good brother that he always was.
By the time he was seventeen, Soichiro had already forgotten about the sinking fear that had always gripped him, that his one good son might someday turn into a monster like his grandfather.
Looks like the curse had skipped Light after all…
Little did he know, he was dead wrong about that.
This was a night just like any other night, the two genii sat apart from each other in the dimmed workroom of the Task Force building.
It was well after midnight, the other sane people have already gone home, leaving just the two.
Light, the seventeen-year-old brunette sat in front of his computer screen, trying his best to mask his irritation at the other male, the pale-faced raven who crouched in his seat munching on cookie animals as he stared at his own screen impassively, toes wriggling as he savored the sweet taste of chocolate fillings.
Light's slender eyebrows began to knit together as the crunching sound got on his nerves, yet he had no means of escape from it, or the eccentric detective that is the bringer of his personal hell, the six-foot chain on their wrists keeping them together for as long as this investigation will take.
Try as he might, he could not get L, or as he liked others to call himself, Ryuuzaki, to be less annoying around him.
He never listens to anyone.
The chain let out a crisp clinking and Light was once again reminded that he will be subjected to torture around the clock with L's god damn presence. It's already the third night that he was unable to get as much sleep as he used to and he's nearing the end of his wits.
He blamed his source of irritation, that recluse, to cause the headache that he is currently developing, feeling as though a hot rod was stabbing through his skull repeatedly as he glared at the bright monitor, sieving through the web for clues of Kira's identity.
The faster they got to that, the faster he'll rid himself of this Hell.
But then this night was not like any other night.
If the brunette would forgot the annoyance that prickled at his nerves for a moment, he could perhaps feel it in his bones that no, it's going to be different.
Everything is changing tonight, himself included.
Light studied the line of text in some Kira worshipper website, where suddenly, the white characters blurred together,
He blinked, thinking past the sudden haze that wrapped lazily around his brain and the hammer that continued to pound mercilessly at his skull.
What?
A fire started in his chest and he felt as if his body was being constricted, trapped by some kind of invisible serpent that coiled around ever tighter, his breaths becoming ragged from the phantom pressure.
He winced and slumped forward suddenly, the world passing in a whirl at that movement.
Light caught himself before he could hit the desk.
He felt rather than see L's curious gaze turn onto him, the twin pools of blackness burning through his body, perceptible even with the heat already raging in him.
"What's the matter, Light-kun?"
"I don't know…" He breathed rather than said it, his head beginning to spin and his breaths increasingly audible in the darkened room.
A sharp spike jammed into his head and he groaned, his hand coming up to clutch at the site of pain, wincing.
L's stare seemed to intensify, weighting down with what Light would be generous enough to call concern.
"Is Light-kun not feeling well?"
Light turned to scowl at him, his brown eyes narrowed even more than usual with the pain.
"Did you just ask?"
L heard the incredulous tone and said, "No, Light-kun is not feeling well."
'If not for this headache, Light-kun would've clobbered you already, you stupid idiot.'
Another stab of pain prevented Light from voicing his thoughts and he groaned instead, slumping forward and resting his head on the hard surface.
"Light-kun?"
His brain functions must've been impaired by this headache, he'd thought he heard genuine concern in L's voice.
"Perhaps Light-kun should retire for the night," the detective said, hopping off the chair, "Light-kun does not look good."
Light mumbled something in response and managed to push himself to his feet, following after L in an uncharacteristic slouch.
That had led L to think that this might be more serious than it looks, as he muttered, "I'll have Watari provide some pain medication for you."
Light raised his head and managed a weak smile through the fog of pain, "Thanks."
Light did not think that the pain would be much worse by the time they reached the bedroom.
It felt as if the fire had begun to consume him from the inside, his head was spinning and his eyes had glazed over from the agony of it as his breathing became slightly more labored.
The only thing that Light could think of through the haze of pain was sleep.
He pushed past L the moment the door was opened and made a beeline for the bed, uncaring if the chain had pulled his arm back and the cuff chafing his wrist.
L finally moved forward and Light immediately crawled onto the bed, groaning as he buried himself under the covers and huddled into a ball resembling L's crouch, his breathing loud in his ears.
L watched all of this with a strange look on his face, he was nibbling on his thumb as he muttered, "Perhaps Light-kun should see the doctor tomorrow."
Light didn't reply as he shivered under the blanket, his eyes squeezed shut.
"Light-kun should take his medication now," L said as he reached for the blanket, "Watari is almost here."
He managed to coax Light into sitting up as Watari entered, the teen barely taking notice of what happened around him as the elderly man passed him the pills and the water as L felt his forehead and found it to be incredibly warm.
The teen was clearly out of it when he began to lean into the older male, hands clutching weakly into his white sweater as he struggled to stay upright.
L helped him back onto the bed and pulled the covers over his shivering form, the younger male groaning as he shifted and curled into himself, panting as a hand clutched at his pillow.
L could only stare in what resembled worry at the sudden sickness that took over his suspect.
What is happening?
An hour into the night, the pain seemed to get worse.
Light began twisting and turning, groaning and hissing in pain and heat spread like wildfire throughout his body, his forehead glistening with sweat.
He tossed the covers aside and curled even further into himself, knees drawn tight to his chest and his arms wrapped around himself, his eyes squeezed tight.
"Light-kun?"
"Hurts…" Light's soft voice ended in a whimper.
"Hold on, I'm calling Watari," L said worriedly as he reached for his phone.
A sharp cry startled the detective so much that he dropped the cell.
"Light?"
Light body was tense as he winced, then he began thrashing, clawing at the sheets as he cried out in agony.
L found himself genuinely terrified at the display as the teen continued to writhe uncontrollably, his mouth open as he wailed.
"Hold on, Light," L picked up his phone and found Watari already beginning to make his way here, having picked up and heard the scream.
Light's cries got even louder and he twisted into the middle of the bed, practically screaming.
The moonlight that filtered through the curtains illuminated the sheen of sweat on his face that became twisted with agony.
L was about to reach for him when a louder scream startled him against it.
Light flipped so that he was lying on his stomach, back arching up and hands clutching the sheets in a death grip.
The next thing that happened was nothing like the detective had ever seen before.
Dark hair erupted all over Light's face as he twisted, sickening cracks and pops could be heard as the sheets showed signs of being shredded.
His lean body seemed to grow larger under L's watch.
Light threw his head up and L could see a glint of fangs in his open mouth.
His face grew longer and brown fur grew all over it, before L could see other things happen.
His limbs grew longer and more slender as the stretching and popping sounds grew louder.
His black shirt was stretched and torn open, something long and hairy grew out of the base of his spine as he kept screaming.
Suddenly, the scream was cut short and the dark form collapsed back onto the bed, heaving.
L stared at it in muted silence, eyes wide with the fear of an unknown as the thing that is supposed to be Light wheeze and panted.
"L-Light-kun?" His monotonous voice was soft and hesitant.
Something that L in his frozen state of mind deduced to be ears pricked up at the sound of his voice, having been flatten in pain earlier.
The thing slowly raised its great head, turning to stare at L with bright golden eyes that shone in the darkened room.
It curled its lips back in a growl, showing large fangs that would undeniably tear him apart from limb to limb.
L found that the cuff had slipped off as the chain slid to the floor, the creature slowly getting to its feet.
It looked like a huge dog, standing over half his height and its fur a dark russet brown resembling Light's hair, its tail twitching behind it as it stared the detective down.
Even though it looked very much like a wolf, it also didn't look like one.
It had dark clawed hands instead of paws like a wolf should, its back slightly arched and the intelligence showing in its golden eyes shone through.
L slowly stepped back, "Nice doggy…"
It snarled and lunged, L just managed to get out of the way.
The wolf-creature slammed into the door instead, whipping around to snarl at L and pouncing.
The detective yelped and scrambled over the bed, tumbling to the other side as a sharp claw nicked his foot.
L's other foot shot out and slammed into its face, the wolf letting out a growl and stepping back.
It leapt onto the bed, the sheets clinging to its claws as it roared at the stricken detective.
The creature snarled and pounced onto a rapidly retreating L, opening its mouth full of needle sharp teeth.
Before it could take a bite out of him, a sharp pain on its back halted its movement.
It turned around and L followed its gaze, catching sight of Watari holding a tranquilizer gun, one that he carried around in his medical box.
He must've them when he heard the screaming.
However, the drug didn't seem to take effect quickly enough as the creature snarled, turning on the elderly man.
L swiftly grabbed hold of the other end of the chain, tugging it against its great neck as it lunged for Watari.
It thrashed wildly in its restraint, turning to snap in L's face as it snarled and growl as he held on for dear life.
Eventually, the struggling ceased and it dropped into a lump in his lap.
L shuddered as he let go of the chain and slumped into the wall that he was against, breathing hard.
"L?"
"Move it to the confinement room," L said shakily, "Hurry, before he wakes up."
Watari nodded and began to help him move the large creature out of the room, tying its legs together and taping its mouth shut.
It let out a rumble and L had to wonder what on earth had happened and why had it happened.
Unexpectedly, Light had just turned into a monstrous creature.
L had no idea what that has to do with the Kira Case, or whether it had anything to do with it.
He stared silently at the creature's sleeping face.
And he was going to get to the bottom of it.
A/N: So, that was werewolf Light, this shit is cliché but I hadn't seen much of it in the Death Note fandom, as far as I know (or I might just be extremely ignorant).
I've been meaning to try this out for a while and maybe try to do a vampire L in the future if I feel up to it. (But just werewolf Light x human L/vampire L x human Light, no werewolf and vampire together, that shit is even more cliché than cliché)
For the moment, I'm just gunna have fun with this muhahaha.