The next morning arrived with a deceptive, hollow stillness. To the rest of the world, it was just another Tuesday in the city—the sun was a pale, sickly yellow behind the smog, and the distant hum of traffic sounded like a steady, mechanical heartbeat. But inside Jongsuk's apartment, the air felt thick, like the heavy atmosphere right before a massive thunderstorm breaks.
Jongsuk woke up late. His body felt like lead, his core muscles screaming every time he tried to shift beneath the blankets. The hospital may have discharged him, but the phantom pain of the surgery was still there, a jagged reminder of how close he'd come to the end. His mind was a foggy mess of medication and half-remembered
nightmares.
Ring. Ring.
The sudden, aggressive chime of his doorbell made him flinch so hard he felt a stitch pull in his side. He stumbled to the door, his clothes rumpled and his hair a mess. He pulled it open to find Jae Ahn standing there. She looked like she hadn't slept in a decade. Her eyes were rimmed with red, her hair pulled back into a ponytail so tight it looked painful, and her posture was like a blade ready to strike.
"Heaaa! Why aren't you up yet?" she barked, her voice echoing in the small hallway. She didn't wait for him to answer. She stepped past him, her boots clicking sharply on the floor. "It's too late! What did I tell you? Did you forget the plan because you were too busy sleeping like a king?"
Jongsuk didn't argue. He just stood there, looking at her. He noticed the way her hands were shaking just a fraction, despite her loud voice. She wasn't just angry; she was terrified. "Okk," he mumbled softly, his voice gravelly from sleep. "I'm coming. Just let me grab my coat."
A few moments later, they were in the car. Jae Ahn drove like a woman possessed, weaving through the morning traffic with a reckless precision that made Jongsuk's stomach churn. The silence in the car wasn't peaceful; it was a living thing, stretching between them until it felt like it might snap.
Finally, Jongsuk turned to her. "Where are we going, Jae Ahn? You're driving like we're running out of time."
"To prove your innocence," she said, her knuckles white as she gripped the steering wheel. "Your height and your shoes don't prove anything to the N.S.I. or the police. They see a shadow on a grainy camera and they want a head to put on a plate. We need your alibi, Jongsuk. It's the only way to stop them from coming back for you."
She glanced at him, her eyes hard. "So, don't hide anything from me. Tell me exactly what happened that night. Every detail. No lies, no 'I forgot.' I need to know why you were there."
Jongsuk swallowed hard. He leaned his head against the cool glass of the window, watching the buildings blur into gray streaks. "I was about to leave the office," he started, his voice barely a whisper. "The lights were already off. My phone rang—an unknown number. When I answered, the voice... it didn't sound human. It was distorted, cold. He said if I wanted to know the truth about Jihu, I had to go to the old industrial district."
He paused, a shiver running down his spine that had nothing to do with the car's AC.
"When I arrived, the place was a graveyard of rusted metal. Empty. I thought it was a prank until I heard the engine. A bike roared out of the darkness. A man in black lunged at me with a knife. It happened so fast, Jae Ahn. I tried to move, but the blade was already there. Then, just as quickly as he came... he was gone. Like a ghost."
Jae Ahn didn't speak. She just pressed her foot harder on the gas.
The Ghost of a Footprint
They arrived at the crime scene—a desolate stretch of cracked pavement and yellow police tape that fluttered like dead wings.
"Why are we here?" Jongsuk asked, his voice shaking. "The N.S.I. already took everything. They searched every inch."
"There is a world of difference between their work and my work," Jae Ahn replied, her voice dropping into a dangerous, focused hum. She stepped out of the car, her boots crunching on the gravel. "They look for evidence to close a file. I look for the truth to save a life. Now, step aside. Let me see the ground through my eyes, not theirs."
She knelt in the dirt, her fingers hovering over the pavement. "The day it happened... it rained. Hard. The ground here is soft silt." She began moving discarded trash and pieces of rotted wood. "Where is it? Where is it?"
Suddenly, she froze. "Found it."
Tucked beneath a rusted metal sheet was a partial footprint. Because of the heavy rain and the way the mud had dried, the tread was perfectly preserved. It wasn't a standard shoe. It was a specific, high-end athletic grip with a unique hexagonal pattern.
"We're going to the exclusive shoe stores," she said, standing up. Her eyes were glowing with a dark fire. "We find the buyer, we find the man who tried to kill you."
At the shoe store, Jae Ahn didn't wait. She marched up to the manager, her aura so intense the man nearly backed into a shelf of sneakers. She didn't ask; she commanded. "I need the sales records for the Apex-Grip series. Every person who bought them in this city over the last month. Names, phone numbers, addresses. Now."
The manager stammered but complied, printing out a long ledger. Jongsuk and Jae Ahn leaned over the counter, their eyes scanning the names.
Jongsuk's heart stopped. His finger hovered over a name near the bottom of the list.
"Zelvyl."
"Do you know that name?" Jae Ahn asked, her voice low.
Jongsuk looked like he had seen a ghost. "I don't know... it's not a name I recognize, but the sound of it... it feels like a song I can't quite remember. It feels too familiar. It's like it's buried in my head, but I can't find the key."
"Don't push yourself yet," Jae Ahn said, her mind already spinning. "If it's a fake name, we'll track the digital footprint. We have the list. That's enough for now."
They headed back to the car, planning to go to the office to cross-reference the name with their employee files. But as Jae Ahn reached for the door handle, Jongsuk's phone shrieked. It was Do Hwan.
"Jongsuk! Get to the hospital!" Do Hwan's voice was breaking, full of static and panic. "It's Eunwoo. He... he had an accident. A hit and run. Get here now!"
The world seemed to tilt for Jae Ahn. She didn't say a word. She just jumped into the driver's seat and floor the engine. The car screamed as she tore through the streets, her face a mask of pure, unadulterated agony.
The Hospital and the Lie
When they arrived at the hospital, Jae Ahn was through the doors before the car had even fully stopped. She found the doctor in the corridor, her breath coming in ragged gasps.
"He's stable," the doctor said quickly, seeing her state. "It was a minor accident. He was clipped by a car on his bike. A few bruises, a light concussion, but he's going to be fine."
The relief that hit Jae Ahn was so violent she nearly collapsed. She pushed into Eunwoo's room, her voice rising into a scream of pure, panicked love. "Why are you so careless! You're on the road, Eunwoo! You have to watch!
Eunwoo sat in the hospital bed, his head bandaged, looking small and broken. "I'm sorry, big sis," he whispered, tears welling in his eyes. "I wasn't paying attention... it won't happen again."
Jae Ahn slumped into a chair, her anger spent, replaced by a deep, hollow exhaustion.
On the way home, the moon had set, leaving the city in a bruised purple twilight. Jae Ahn was driving, her eyes fixed on the road ahead. Do Hwan sat in the passenger seat, silent. In the back, Jongsuk had finally fallen asleep, his head resting against the glass. Eunwoo sat next to him, staring at the back of his sister's head.
"Big sis?" Eunwoo whispered.
"Yeah, Eunwoo?"
"Was Jongsuk with you all day? Every minute?"
Jae Ahn glanced at him in the mirror. "Yes. We were at the crime scene, then the shoe store, then the office. Why?"
Eunwoo looked at the sleeping Jongsuk, a look of pure terror crossing his young face. "Because... right before my accident... I saw him. I saw Jongsuk on the road."
Jae Ahn's blood turned to ice. "Eunwoo, you have a concussion. He was with me."
"No," Eunwoo insisted, his voice trembling. "I saw him. I called his name. He looked right at me, but his eyes... they were cold. He didn't know who I was. He just kept walking. He looked exactly like him, big sis. Exactly."
Jae Ahn slammed on the brakes. The car screeched to a halt in the middle of the dark street. The sudden jolt woke Jongsuk, who blinked, confused and groggy.
"What? What's going on?" Jongsuk asked.
Jae Ahn didn't look at him. She looked at Do Hwan. Do Hwan was already looking at her, his face pale as a ghost.
If Jongsuk was with her... then who was the man Eunwoo saw?
Jae Ahn looked into the rearview mirror, her eyes meeting Jongsuk's confused gaze. But for the first time, she didn't see her friend. She saw a stranger. She saw a monster with a familiar face.
The silence in the car was no longer a silence. It was a scream.