A/N: Just a short note. Taking a break from my other story Restless again while I go hunting for my muse to blast away a writer's block :) Meanwhile, interestingly, I was thinking of the last chapter I wrote about Light playing the cello. And then I thought, music might be an interesting platform for a rivalry of sorts, as individuals. There is a certain chemistry in the contrast of tastes. This will have a slight inspiration from Ai Yazawa sensei's Nana. Just a short intro as a start, R&R if you like the idea.

With regards to the title, if Fang is ever like midnight with her strength and calm, then Light is like her sun(shine) with her speed and precision. If Light is ever like the dark with her stoicalness and reclusiveness, then Fang is her light with her exuberance and zest for life. Night and day, day and night.

This is an exploration of their personalities in AU. I don't know where it might go, what pairings may result. But that's the fun isn't it? Fang and Light will be the main characters, that's for sure.

I. Worlds Collide

Light dragged her tired body forward and alighted at the platform of the Vile Peaks station at midnight. As the name suggested, this part of town was really the slums. But she had long since become immune to the filth and decrepit surrounding the place. How could she complain when she at least had a roof over her head and enough to keep herself fed?

Her thin frame was slightly hunched from the black case she carried over her back. Well-worn canvas shoes scuffing the floor, she made her way up the dark flight of stairs, in the direction of her dingy apartment. With the hood of her sweater pulled low, she kept her eyes down, away from the shadowy presence of homeless beggars reaching out pleadingly to her. No, she could hardly help herself, much less spare what was left of her compassion for others. Her long, scraggly pink fringe fell across her face, shielding her vacant blue eyes from the suffering of others around her.

Keeping a brisk pace, she ambled along the deserted sidewalks weakly illuminated by the flickering orange glow of streetlamps. Her hands dug deep into her tattered jeans pocket. She kept her grip over the comforting cold metal of her survival knife. One could never be too cautious in a complicated neighbourhood like this. She had almost been mugged a few times along these alleyways had she not had the sense to keep herself armed. It could have been worse.

As she finally reached the dim corridor that led to her apartment, she paused with heightened senses at something out of place. There was a sliver of light under the door to her room and packing boxes stacked up next to the door frame. She frowned and searched her befuddled mind for a plausible explanation. Then she remembered. The landlady had said there would be a new tenant in her flat since Serah moved out of the spare room. That must be it then. She groaned in frustration. The day had been long and all she wanted to do was to crash into bed unconscious. She didn't think she had the energy to make conversation with a total stranger in the wee hours of the morning.

Sighing inwardly to herself, she fumbled with her room keys and let herself in. The first thing that hit her was the abundance of cigarette smoke choking the air.

Oh great, I have a smoker for a roomie. I must really thank her for shortening my miserable life by half…

She coughed and waved the air in front of her face that was already making her eyes water up. She could make out a hazy tall figure reclining in the couch by the window.

"Hey there, ya must be my roommate…" A deeply rich, accented voice flowed like chocolate through her ears. As Light stepped closer, the tall figure unfolded from the couch and extended her hand.

Light looked at her new roommate appraisingly. Wild black hair streaked with highlights of copper and red, an easy-going smile and a pair of the most arresting green eyes she had ever seen. Like a predator's. Like they could see right through what you were hiding. Light looked away first and slid her pale hand into the tanned one before her.

"Call me Light." She gave a gentle shake of her hand, and was surprised at the strong grip that refused to let her go.

"Light…" The woman took a moment to swirl her name on the tips of her tongue, like savouring the nuance of the word slowly, before a wide grin formed on her face. "I like it! Suits ya. The name's Fang, and I want no weird ass comments 'bout that."

She loosened her grip and threw herself back on the couch, crossing her long legs that were clad in tight leather pants. Her arms stretched out across the back of the cushions to reach for the lighted cigarette resting on the ashtray. She took a deep drag. Light regarded her curiously, noting her pierced ears and the dark green ink of a tattoo that spanned her entire left upper arm. She had a very toned, muscular body that she did not bother to hide in her ripped off sleeveless shirt that bared her midriff and long arms.

"Sorry I already made myself at home, didn't know what time you'll be back." Her emerald gaze swept up and down, making Light feel ill at ease. She shuffled her feet, crossed her arms and hugged herself. This woman was bold and her aura penetrated Light's well guarded privacy. She wondered how she would be able to live with her in the same space.

Fang nodded towards the black case on Light's back. "I see, you're a fellow musician. Wad d'ya play?"

Light slung the black case off her back and rested it on the floor. "The cello." Her blue gaze slid to the black vintage guitar resting on the couch. "That yours?"

Fang grinned and brought the guitar to her lap and strummed a few notes. "Yep. This here is my Kain. Can't live without him. I don't use him onstage though."

Light canted her head to the side questioningly. Fang laughed. "You're one of few words, aren't ya? The whole time I'm talking my ass off here. I'm into rock music, with my own band and all." She winked conspiratorially at Light. "So, what's your beat?"

Light nodded her head slowly. That explained her outrageous outfit and larger than life personality. She allowed Fang a small smile.

"Cello. Classical. Nice to meet you."