obsidian


prologue


The sky had turned a deep shade of violet, the last remnants of daylight dissolving into the city's glittering lights. High above the streets, she glided through the air, her long, silver-blue hair trailing behind her, catching the wind as she flew swiftly between towering buildings. The cool evening breeze wrapped around her like a familiar embrace, lifting her effortlessly, but there was urgency in her flight-a quiet tension that came from doing something she wasn't supposed to. Below, the soft glow of streetlights flickered on, turning the streets into rivers of golden light, but she remained far above it all, suspended in her own world.

Her delivery bag hung snugly at her side, filled with carefully packed orders, and she navigated the night with the ease of someone who had done this a thousand times. She darted through the shadows cast by taller buildings, moving with a practiced, confident grace. Up here, alone with the wind beneath her and the city buzzing below, everything else seemed small and distant. She glanced at the phone strapped to her arm, the next delivery address flashing on the screen. A small grin tugged at her lips.

"Just two more for tonight," she muttered, adjusting her course, "and maybe a couple extra for good measure. Gotta save what I can."

Her days were packed, a delicate balance of university and the part-time jobs that helped her scrape by. Her father was always on her case about focusing more on her studies, but the thought of adding a little more to her savings gave her a sense of satisfaction-a small victory in her struggle for independence. Delivery work had become a reliable way to make quick money. She had plans, goals-ones that didn't rely on anyone else. And if that meant working extra shifts into the night, so be it.

But it wasn't just the deliveries that kept her going-it was the tips. Tipping wasn't common in Japan and was often frowned upon, but foreigners were different. Tourists and expats were generous, appreciating her speed and efficiency. That extra cash padded her savings and helped her stay afloat with tuition and bills constantly hanging over her head.

To earn those tips, though, she had to be fast. Fast enough to impress, but not so fast that anyone would notice she wasn't exactly following the rules. Her quirk, while incredibly useful, wasn't meant to be used so openly. There were strict laws about that. But she couldn't afford to play by the rules if she wanted to keep up with the demand. So, she kept to the shadows, flying just below the radar, hoping no one would bother to notice a delivery girl cutting through the sky.

She adjusted her path, allowing the wind to carry her in a smooth arc. The fading light of day and the emerging stars created a peaceful backdrop, and for a moment, she let herself get lost in it. These quiet moments-soaring above the chaos-were what she cherished most. As long as she stayed in the shadows, kept her movements quick and subtle, she'd be fine. Or so she told herself.

No one notices a delivery girl in the sky when they have bigger problems down on the ground.

She descended lower, skimming the roof of a building before pushing off again, sending herself hurtling toward the next destination. Below, the city hummed with life, a patchwork of lights and noise that felt distant, almost irrelevant when she was this high up. She loved the feeling-the sense of freedom that came with being far from the pressures of school, work, and her father's expectations. He never quite understood why she insisted on juggling so many part-time jobs.

Touching down softly near the entrance of an upscale apartment complex, she landed with barely a sound. A quick flick of her wrist sent a gentle gust of wind to steady her, and she quickly checked her phone to confirm the order. As she approached the door, a young man stepped out, clearly foreign from his accent, his face lighting up with surprise when he saw her.

"Wow, that was fast!" he exclaimed, glancing down at his phone. "I swear I just ordered this ten minutes ago."

"Speed's part of the job," she replied with a smile, handing him the neatly packed order.

"Well, you've got it down. It's like you dropped straight out of the sky," he joked, glancing upward, half-expecting to see something there. "You must have a trick up your sleeve."

She laughed lightly, not confirming or denying anything. "Enjoy your meal!" she said, giving a small bow.

"Hey, you must be making a killing with these deliveries, huh?" he said, grinning. "Getting around faster than anyone else."

She flashed a quick smile. "It gets me where I need to be."

The man smiled, reaching into his pocket, and pulling out a few extra bills. "Here, this is for you. You saved me tonight. Gotta get back to a meeting in five minutes."

She accepted the tip, feeling a wave of satisfaction as she pocketed the cash. "Thanks! Glad I could help."

As the door closed behind him, she glanced at the extra money in her hand, already calculating how much it added to her savings. Foreign customers were always the most generous. They didn't care about the cultural awkwardness of tipping. To them, it was natural, and she wasn't going to argue with that.

With a quick glance around to make sure no one was watching, she lifted off into the night once more, the tension of bending the rules slipping away as the wind carried her higher. Here, above the city, she felt weightless-untouchable. She let out a small sigh, feeling the last remnants of the day's stress leave her body.

Her phone buzzed again, alerting her to the next order, and she turned, steering toward a quieter part of the city. The wind hummed past her, a familiar sound that helped clear her mind. She knew her father would lecture her endlessly about prioritizing her studies, but he didn't understand the pressure she was under. She was doing what she had to do.

She touched down outside a modest townhouse, landing softly enough not to draw attention. A middle-aged woman, clearly not Japanese, opened the door with a warm smile.

"Goodness, you're quick! I didn't think you'd be here so soon," the woman said, her thick accent betraying her surprise.

"Got here as fast as I could," she replied, offering the food with a smile.

The woman fished into her purse, pulling out some extra bills. "This is for you. I can't believe how fast you are. You're like a little superhero!"

She chuckled, accepting the tip with a bow. "Thank you. I try my best."

With the door closed behind her, she took a deep breath and pushed off the ground, the wind lifting her into the sky. The tips were adding up tonight, and with any luck, she'd have enough to cover more than just bills. Maybe, just maybe, she could save a little extra for herself-a reward for all the long hours and late nights.

But she couldn't let her guard down. She wasn't supposed to be using her quirk like this-zipping between buildings, cutting through the sky like it was her personal highway. It didn't matter that she wasn't hurting anyone, or that she was just trying to make ends meet. The law didn't care. If anyone caught her, there would be serious trouble.

Her phone buzzed again with the final order for the night. She turned sharply, diving between two buildings before pulling up just above the rooftops. The wind whistled past her as she sped toward the last stop, the city's lights twinkling below. It was easy to forget, up here, that she was breaking the rules. Easy to pretend she could do this forever.

The city felt like it belonged to her up here, but she knew better. It wasn't hers. It was never hers. She was just borrowing it for a few moments before she had to come back down to reality.

She let out a soft laugh, twisting mid-air into a gentle spin. There was nothing else like this. Nothing that made her feel so alive. In the air, she wasn't just another student or delivery girl.

She was free.


From the shadows of a weathered rooftop, he watched her.

His sharp eyes followed her movements as she sliced through the night sky, her silhouette weaving effortlessly between the dark towers of the city. The wind carried her, swift and sure, but she wasn't as invisible as she thought. He had seen her-watched her as she darted between the rooftops, moving with purpose, just a little too fast, just a little too determined to stay hidden.

A smirk tugged at his lips as he leaned against the ledge, his arms crossed over his chest, his scars illuminated faintly by the glow of the streetlights below. His expression was unreadable as he watched her glide with practiced ease through the sky. He remained motionless. The faint wind that carried her barely reached him, but he didn't need to feel it to understand the control she had over it. He could see it in the way she moved-graceful, confident, unaware that someone else was watching.

She was good. But the question was if it was good enough.

His gaze narrowed slightly, his lips now curling into a slow, crooked smile as he watched her disappear behind one of the taller buildings. She thought she was free, floating above it all. How naïve. She was just another piece of the puzzle, another cog in the machine, blissfully unaware of how easily she could be pulled back down to earth.

His eyes scanned the horizon, searching for her again. There was something about her, the way she moved, that caught his interest. It wasn't just about power. It was about control, precision. She didn't waste a single motion. It was the kind of skill that made him wonder just how useful someone like that could be.

"Not bad," he murmured, a flicker of amusement in his voice.

He watched the dark sky for another moment, waiting to see if she would reappear. When she didn't, he let out a short, quiet laugh to himself. His scarred fingers drummed idly against the rough concrete ledge, his thoughts churning behind that ever-present smirk.

She thought she was clever, slipping through the city like a ghost, using her abilities in secret. But no one stayed hidden forever. The way she zipped between buildings, just a little too fast for someone looking to stay out of sight. The way she touched down for her deliveries, careful but always glancing around. She wasn't just trying to save time. She was trying to outrun something—whether it was the law or something else.

And that intrigued him, but not ready to act just yet.

"A quirk like that…" he muttered to himself, his voice a rasp in the cool night air. His eyes narrowed slightly as he tracked her movements. "That could prove useful."

His eyes narrowed as he tried to track her across the skyline. She was fast. Efficient. More than most. Her movements weren't just about getting the job done. There was something else driving her. He let out a short, bitter laugh, the sound barely audible over the wind. The sight of her-so free, so unaware-made him wonder what it would take to turn that effortless grace into something more dangerous. Something useful to him.

"Flying high, above it all," he mused, the smirk widening as the faint flicker of blue flame sparked to life in his palm. "She probably thinks she's untouchable. But I've burned things that fly before." The flame twisted between his fingers before disappearing as quickly as it had appeared.

"Useful," he repeated to himself, his tone darker now, more calculating. "But not yet. I'll keep looking… see if I can find something better. Or maybe…" He paused, his smile twisting into something more sinister. "Maybe she'll find me."

He lingered for a moment longer. She was playing a dangerous game, thinking she could skirt the law, thinking she could keep her little secret. But secrets didn't last long in a city like this. She thought she was in control, thought she could fly under the radar, unnoticed. No, eventually, someone always found out. And when they did, it wasn't about whether she got caught. It was about who caught her first.

But he had seen her. And now that he had, he wouldn't forget.

He ran a finger along the edge of the ledge, his smirk deepening. "I'll keep an eye on that one," he mused, turning away, and slipping back into the shadows, a crooked smile twisting his lips. "Could be fun when she falls."

She wouldn't be flying so high for long. Sooner or later, she'd have to land. Or fall. They always fell eventually.

And when she did, he'd be waiting.


Author's Note: Welcome to obsidian!

Tsubaki Kazeha is my OC and she is just a university student with wind related quirk. I will go into more detail what it is and what she can do in the upcoming chapters.

The rating WILL CHANGE from T to M in the future. There will be smut and lots of it because...well...can't give away everything right now :)

Thank you very much for reading or even clicking on this story! Feel free to leave some love! It's not necessary but very appreciated!


Tsubaki Kazeha © lvvesiickie
My Hero Academia (Boku no Hero Academia) manga © Kōhei Horikoshi
My Hero Academia (Boku no Hero Academia) anime © Bones