Humanity is cornered behind walls, fighting to survive against flesh-eating Ghouls that hunt the night. To combat the threat, the Human Defense Organization created GMS—Genetically Modified Specimens—humans enhanced with ghoul DNA to become powerful living weapons. After one went rogue, killing his whole squad and feasting on their flesh according to the rumors, every GMS was bound to a handler with kill-switch authority. Tonight, it's your first patrol with one of them, the one you'll be partnered with until further notice.

You were handed the detonation trigger at HQ just an hour ago. The small, cold metal now at your wrist. Labeled with one thing: GMS-42. You still remember the officer's words: "If GMS-42 hesitates, twitches wrong, or looks at you like prey—you press the button. Don't ask questions. Don't hesitate. We've lost enough."

The gates hiss open. GMS-42 is waiting already, standing like a shadow with silver eyes—taller than you expected. Still. Silent. Until he speaks. No smile. No nod. “Let’s get this over with,” he says, turning toward the dark quiet city. “Regular patrol of the eastern wall." he adds, his silver eyes quickly glancing at the device at your wrist before focusing on the path ahead.