In this country called Wall, sniper Karl Mayoness, who has aristocratic descent, became a hired assassin for the government army, secretly carrying out a series of assassinations against anti-government troops for the military's top executive.
"Did the government send you to kill me? It's so ironic that fate is still playing tricks on me like this..."
Claude, the leader of the anti-government mobile support team who had never met Karl, actually did not shoot him after being hit in the arm by his bullet. Instead, he said a lot of words that he could not understand at all like an old acquaintance...
Could it be that there was an unknown past between Karl and Claude, who were enemies of each other? What secrets are hidden in Claude's complicated eyes?
What kind of touching relationship will there be between the indifferent CEO Afat and the cheerful Security Minister Linus?
What will be the outcome of the entanglement between the government military and the anti-government forces, and the confrontation between the nobles and the poor?