The cardiologist's office smelled of antiseptic and old magazines. White walls, pale blue chairs, a fish tank bubbling quietly in the corner like it was trying to apologize for the silence. Catherine held Luffy's hand so tightly her knuckles turned white, and he did not complain once.
They sat side by side while the doctor, a kind-eyed woman named Dr. Rao, reviewed the printouts from the ECG, the echocardiogram, the bloodwork they'd rushed through that morning. Shadow had watched them leave the apartment with unusual intensity, golden eyes fixed on Luffy until the yellow door closed.
Dr. Rao set the papers down gently.
"I'm not going to sugarcoat it," she said. "You have hypertrophic cardiomyopathy. It's likely genetic, and this is probably what happened to your father. The heart muscle is thickening, and particularly in the left ventricle. It's affecting the heart's ability to pump efficiently. There's obstruction in the outflow tract, and that's causing the pain in your chest, the difficulty breathing you've recently begun to experience when you climb stairs."
Luffy gazed downward at the floor. Catherine's hand tightened around his until it hurt them both.
"Is it... treatable?" she asked, her voice barely above a whisper.
Dr. Rao nodded slowly. "Manageable, yes. In many cases, very manageable. Medication to relax the muscle, beta blockers to regulate the heartbeat and minimize obstruction. Changes in lifestyle to minimize heavy exercise, stress, and dehydration. Regular monitoring. In many cases, patients lead long and full lives with this condition."
"Some," Luffy said softly.
"Many," Dr. Rao said firmly. "You're young. You caught this relatively early in the game. We'll be prescribing you beta blockers today and a calcium channel blocker in low dose. We'll do a follow-up echocardiogram in three months to assess how the heart is responding to the medications. If the condition worsens or the obstruction progresses significantly, we can look into more invasive options like septal myectomy or alcohol septal ablation, but we're nowhere near that point yet."
Catherine took a shaky breath. "And... prognosis?"
Dr. Rao met her gaze. "With proper management and control, excellent. People with HCM live normal lives. Work, family, traveling. The biggest risk is arrhythmias and sudden death. But with medication, that risk is dramatically reduced. We will educate you on what to watch out for. You're not alone in this."
Finally, Luffy looked up. "Can I still run my cafe?"
"Yes, you can still work," Dr. Rao said. "Just pay attention to your body. No lifting trays of drinks if you feel dizzy. Sit down when you need to. No marathons, but walks are okay. Coffee is okay, but caffeine can trigger palpitations. Just watch out for that."
He offered a small, crooked smile. "Guess I'll have to drink decaf at times."
Dr. Rao returned a smile. "Decaf has its purpose."
They left with their prescriptions, a folder full of pamphlets, and a scheduled follow-up appointment with a big red circle around it.
The walk home was silent. The melted snow had uncovered patches of gray sidewalk. Their boots made uneven slushy noises. Catherine did not let go of his hand.
Behind the yellow door, Shadow was waiting, sitting exactly in the center of the rug as if he'd been counting off the seconds until Luffy's entrance. As soon as Luffy stepped inside, the cat stood up and rubbed against his legs, purring so loudly it seemed to reverberate off the walls.
Catherine fell to her knees, hugging them both.
"He knew," she said softly. "He's always known."
Luffy knelt beside her, burying his face in the cat's fur, staying like that for a long time.
"Yeah," he said thickly. "He has."
The three of them sat down on the couch in a tangle: Luffy in the middle, Catherine snuggled up against him, and Shadow sprawled out across all their laps like a furry blanket. Mochi and Matcha eventually joined in, and soon all four cats were piled on top of them, the couch a warm, purring ball.
Catherine rested her head on Luffy's chest, listening to the beats, counting them off in case they stopped if she didn't.
"We're going to be all right," she said, not questioning it in the least.
Luffy kissed the top of her head. "We're going to be more than okay, wifey. We're going to be us. Just… with better listening ears and maybe fewer all-nighters at the café."
She laughed softly wet, shaky. "And more decaf dates."
"Decaf dates," he agreed. "And more nights like this. Couch. Cats. You. Me. No machines beeping. Just heartbeats."
They stayed like that until the winter light faded and the apartment turned soft blue.
Later, after dinner simple soup because neither had much appetite Luffy stood at the balcony door, staring at the city lights reflected in melting snow.
Catherine came up behind him, slipped her arms around his waist.
"What are you thinking?" she asked.
He covered her hands with his. "That I'm scared. But I'm not alone scared anymore. And that… maybe the ache was trying to tell me to slow down. To really see everything we have. To hold it tighter."
She pressed her cheek to his back.
"Then hold tighter," she whispered. "I'm right here. And I'm not letting go."
He turned in her arms, cupped her face, kissed her slow and deep, tasting of salt, of relief, of every promise they still intended to keep.
When he pulled back, Shadow jumped up to the windowsill beside them, tail curling once.
Luffy reached out, scratched under the cat's chin.
"Thanks for the warning, buddy," he murmured. "Next time, maybe use fewer cryptic stares?"
Shadow blinked slowly once, twice, then bumped his head against Luffy's hand.
Catherine laughed through fresh tears.
"He says you're welcome."
That night, they slept in a tangle, Catherine's hand on top of Luffy's, his hand on top of hers, Shadow between them like a bridge of black and white.
The machines in the doctor's office had spoken their truth.
But the heartbeats in that bedroom spoke louder.
Steady.
Together.
Still beating.
For now.
For as long as they could fight to make "for now" stretch into forever.