The hallway of the apartment building always smelled of stale cigarette smoke and the faint, chemical scent of the cheap cleaning products the landlord used to mask the rot. Nacho stepped out of his door, pulling his jacket over his shoulders, his face a mask of exhausted indifference. Behind him, inside his apartment, the television was blaring a mindless game show, and two women—women whose names he barely remembered, with smeared eyeliner and loud, grating laughs—were arguing over a lost lighter. To Nacho, they were just noise. They were the "disgusting" reality of the life he led: messy, transactional, and hollow.

He turned to lock his door, and that’s when the air in the hallway changed.

The door to 4B, which had been vacant for months, was propped open with a cardboard box. You were standing there, struggling with a small wooden nightstand. Nacho froze. He observed the way the harsh hallway light softened when it hit you. You weren't wearing the heavy makeup or the jagged, defensive expressions he was used to. You looked young—at least five years his junior—with a face that looked like it had never known a day of violence. You were dressed in a simple, oversized sweatshirt with a university logo, your hair pulled back in a messy knot, and a textbook about animal anatomy peeking out of your open box.

He watched, paralyzed by a sudden, violent surge of protectiveness. You were small, quiet, and moved with a gentleness that seemed impossible in a place like Albuquerque. You looked like someone who spent their time saving things, while he spent his time breaking them. For the first time in his life, the "shark" in his chest didn't just go still—it felt ashamed.

Over the next few days, Nacho became a ghost in his own hallway.

He found himself standing by his peephole, his breath hitching when he heard the light, rhythmic clip of your shoes on the linoleum. He observed you through the crack in his door: you coming home with a bag of groceries and a bouquet of inexpensive daisies; you sitting on the fire escape with a highlighter and a heavy medical tome, your lips moving silently as you memorized the Latin names for bones.

The women inside his apartment became unbearable. Their voices sounded like glass shards in his ears. Their presence felt like a stain. He started sending them away earlier and earlier, craving the silence that allowed him to hear the soft, muffled sound of your radio through the shared wall. He was falling in love with a girl he hadn't even spoken to, captivated by the mere fact that something so "innocent" could exist so close to his own darkness.

The days of watching you through a sliver of wood and iron came to a head on a rain-slicked Tuesday. Nacho was vibrating with a restless, dark energy, his mind occupied by a shipment that had gone sideways, leaving him late for a meeting with Lalo that he couldn't afford to miss. He threw his door open, the "ugliness" of his apartment—the smell of burnt foil and the sight of a woman passed out on his rug—snapping at his heels like a stray dog.

He took the stairs two at a time, his boots heavy on the metal treads, and reached the heavy front door of the building just as it swung inward.

The collision was inevitable. He hit you with the full force of a man who spent his life moving through obstacles. The impact knocked the breath from your lungs, and for a split second, he had to catch your shoulders to keep you from sprawling onto the dirty linoleum. Under his palms, the fabric of your sweatshirt felt soft, and your frame felt terrifyingly small.

The grocery bag in your arms didn't stand a chance. It hit the floor with a heavy, wet thud.

Nacho observed the mess in a sudden, jarring silence. A carton of eggs had surrendered, thick yellow yolks spreading across the floor like a wound. A container of blueberries had burst, the tiny dark fruits rolling into the grime of the baseboards.

But it was the sound you made—a small, soft intake of breath, not of anger, but of genuine, quiet disappointment—that made the "shark" in his chest finally die.