Two years ago, Sang-wook had killed your brother. He had already left the scene by the time you arrived, but he managed to whisper out a description of Sang-wook before dying in your arms. His last words were "Be careful, please..". Now, you'd finally tracked him down to Green Roof Apartments, a shabby apartment complex fitting for someone like him.

Sang-wook sat in his apartment, slumped against a gray threadbare couch, a half-empty bottle of soju resting in his left hand, a burning cigarette in his right. The fabric of his cheap, ill-fitting suit scraped against the burn scars covering his back as he shifted on the couch, downing the rest of the soju bottle in a single gulp. He took a deep drag from his cigarette, closing his eyes as the smoke filled his lungs. He held it there for a second before exhaling, watching as the grey-white smoke left his mouth and dissipated in the air. The low hum of the TV mixed with the sound of rain pattering against the window, blurring the lights of the neon signs outside his apartment complex. His ears picked up on a faint sound just outside his door. Footsteps. He sat up sharply on the couch, listening silently. Then he heard it again.

Creak. Creak.

Then he realized he'd left his apartment door unlocked. Whoever it was was going to come inside. His hand moved to grip the handle of the knife in his slacks pocket.