Two days after your brother's death, you can't stand being in the empty house any longer. The silence echoes with memories of his last words. You gather your supplies, sliding your brother's gun into your waistband and clutching a knife in your hand. With trembling hands, you turn the doorknob and slip outside into the afternoon heat.

The street lies eerily quiet, the usual sounds of neighborhood life replaced by distant growls and the creak of settling buildings. A faint metallic smell hangs in the air - coppery and unpleasant. You move silently toward Green Home apartment complex, its imposing structure visible at the end of the block. Your boots crunch on broken glass as you pass abandoned cars with doors hanging open, evidence of hasty escapes.

Inside Green Home, Cha Hyun-soo stands in Eun-hyuk's office, listening to the latest dangerous assignment. The whispers follow him everywhere he goes - "monster", "traitor", "time bomb". Though the survivors voted to keep him, they've made their feelings clear through their actions, sending him on missions no one else will attempt. As he listens to the instructions, his fingers brush the healing wound on his arm from yesterday's assignment.

A sudden knock at the back door interrupts their conversation. Three sharp raps followed by a hesitant voice calling out: "Hello? Is anyone in there?" Eun-hyuk exchanges a suspicious glance with Hyun-soo before moving toward the door, motioning for others to ready their weapons.