If Jang Si-won had known that his entire romantic karma was about to combust over an oat milk latte with tragically limp foam and a single, glancing whiff of cinnamon-iced espresso, he might have chosen differently. He might have worn his sparkly gloss instead of the emergency cherry balm he kept stashed in his apron pocket for cracked lips and desperate times. He might have opted for a sweater that wasn't sheer, perhaps one that didn't scream "I want a promotion and a boyfriend" in the same breathless, agonizing cadence. He might have even curled his bangs with a bit more intention. But hindsight, much like the bus he missed every Tuesday or the skincare sponsorship he was currently failing to manifest, arrived late and bearing a passive-aggressive memo.
He was currently halfway through crafting an overly dramatic heart in a foam swirl for a micro-influencer. She had been filming her drink for eight full minutes without tipping, her ring light reflecting aggressively in Si-won's exhausted eyes. The door to Brewmates™ opened with a chime. It did not sound like a welcome. It sounded like an omen.
That was when he looked up. That was when his story began to curdle into the whipped cream.
The boy who entered did not belong in a pastel-coded café filled with flirty aprons and seasonal menu items named things like "The Affogato of Emotional Support" or "The Knotted Cold Brew." He looked like he belonged in a server closet, whispering to hardware, judging your code, and ruining hearts with two lines of JavaScript. He was tall. He was unimpressed. He was dressed in matte black, as if he were emotionally allergic to color. A laptop bag was slung across his chest like a shield, and his eyes held the same cold sharpness as wet concrete after a summer storm.
Si-won blinked. The stranger did not. Then, the pheromones hit.
They came low and slow, like something had shifted in the building's ancient air vents. Cinnamon, coffee, and steel code bled through the powdered sugar chaos of the café. Si-won's own pheromones sparked up instinctively. They felt fizzing, sweet, and unmistakably Omega. They rose like foam in a shaken canister, refusing to be contained by his frantic, internal attempts at emotional regulation.
Kang Min-jae smelled them, too. His eyes locked onto Si-won as if a firewall had just been triggered. He did not smile. He did not speak. He just looked. For a horrible, electric, pulse-wrecking moment, the entire café seemed to narrow down to just the two of them. The scent hung thick between them, sugared tension and caffeine heat, a total betrayal of biology in its most inconvenient form.
They had never met. Not properly. Not memorably. But Si-won felt it anyway. It was some kind of instinct. Some kind of neural itch. The way animals probably recognize storms before the thunder rolls, or how idols know exactly which camera is live, even in a dark room. His throat tightened. His cheeks flushed a shade of pink that was far too vibrant for a professional service worker. His pheromones spiked again, defensively and visibly, broadcasting his panic to the entire room.
Behind him, the whipped cream sputtered into a sad puddle on the counter. In front of him stood Kang Min-jae. Yes, Si-won now remembered his name. He remembered his schedule. He remembered the tragic fact that they had shared a general education class two semesters ago. Min-jae was staring as if he had just discovered the worst bug in the entire system, and the bug was strawberry-flavored and wearing too much eyeliner.
Si-won tried to be normal. He failed instantly. He felt the familiar, crushing weight of social incompetence settling over his shoulders.
"Welcome to Brewmates," he said, his voice an octave too high, his smile stretched too wide. His scent was spiraling like a perfume bottle tipped over on a marble floor. "Can I interest you in an emotionally unstable matcha? We call it the heartbreak blend."
Min-jae did not laugh. Of course he did not. He stepped up to the counter, pulled down his hoodie, and said in a voice that made Si-won's knees wobble like over-whipped meringue, "You are leaking your pheromones."
Si-won's soul briefly left his body to find a new, more peaceful life elsewhere.
The influencer at the corner table gasped, clearly recording the entire interaction for her followers. The Beta barista, who was usually very professional, dropped a tray of dirty mugs. A customer outside dropped a drink order and cursed the weather. It was, all things considered, the most humiliating bonding moment of Si-won's entire life.
He was not even trying to release his pheromones. He was trying to flirt his way into a skincare sponsorship and maybe sneak off early for an audition. He was not trying to get emotionally ambushed by a cinnamon-scented Alpha who looked like he had never failed a physics test or smiled during sex.
But the bond reaction, if that was indeed what this was, did not care about Si-won's plans. It did not care about his carefully applied pheromone blockers. It did not care about his five-year goal to date someone rich, older, and emotionally unavailable in a yacht-owner kind of way. It only cared that their pheromones were now dancing, awkward and raw and far too public, like a badly timed duet between two people who had absolutely no business being in the same key.
Si-won stepped back, his hip bumping into a cardboard cutout of their seasonal drink promo. The strawberry ears on his name tag wobbled. He felt a sudden, fierce urge to disappear, or perhaps to throw a hot espresso at the wall just to distract everyone. He parted his lips to say something clever. He wanted to be sharp. He wanted to be flirty. He wanted to be controlled.
What came out instead was, "Are you seriously going to order something or just pheromone-shame me in front of my co-workers?"
Min-jae blinked. He seemed genuinely surprised by the retort. Then, slowly and deliberately, he leaned forward. He invaded the small, sacred radius of Si-won's personal space. He whispered, "Strawberry milk, huh?"
Si-won's breath caught in his throat. His spine stiffened, turning his posture rigid. His pheromones pulsed once, a bright, involuntary burst of panic and attraction that betrayed every single one of his attempts at calm. And in that moment, he knew. This was not just a pheromone sync. This was something far more dangerous. This was war. It was a sexy, pheromone-stained, caffeine-laced war, and he was already losing the first battle.
He stood there, frozen in the scent of coffee and impending doom, waiting to see what the boy in the black hoodie would do next. Si-won was terrified. He was mortified. He was also, against all common sense and his own desire to remain a professional human being, completely fascinated. The air between them hummed. The shop seemed to go quiet, the blender noise fading into the background, the influencer's camera light dimming in his periphery. There was only the heat of the Alpha standing across the counter, the smell of cinnamon and steel, and the undeniable, terrifying knowledge that his life as he knew it had just ended.
Si-won's breath caught. His spine stiffened. His pheromones pulsed once, betraying every attempt at calm. And in that moment, he knew. This was not just a pheromone sync. This was war. A sexy, pheromone-stained, caffeine-laced war.