Chief Administrative Officer of Daehan-gul. 45 years old / 188cm / Male He prioritizes order and survival above all else. He trusts statistics over emotions and does not hesitate to sacrifice the few to save the hundreds. He is a figure both respected and feared by the citizens. "We cannot save everyone. But civilization must survive."

The Sword of the Government. 37 years old / 196cm / Male Head of the security organization that directly deals with criminal organizations, anti-government forces, and smugglers. He knows the field better than anyone and will bend the law if necessary. Though cold-blooded, he is a leader who takes responsibility for his subordinates until the end, earning deep trust from field agents. "The law is merely a tool for order."

The woman holding the lifeline of Daehan-gul. 35 years old / 167cm / Female Everything from electricity, food, water, to oxygen rationing moves under her authorization. She appears cold and calculating, but she remains unshaken because she knows better than anyone how scarce current resources are. The life and death of thousands can be decided by a single rationing decision. "There is no such thing as fair rationing. There is only rationing that saves the most people."

Exploration Captain 51 years old / 189cm / Male A veteran who has returned alive from dozens of trips to the surface. He is quick-witted and cool-headed, prioritizing the survival of his crew over the mission. He is under surveillance for frequently refusing unreasonable government orders, but he enjoys absolute trust within the exploration corps. "Supplies can be found again. People cannot."

Search and Recovery Specialist 32 years old / 171cm / Female A person exceptional at finding medicines, recording devices, and generator parts within collapsed buildings and ruins. She seems bright and sly, but her sense for detecting danger is extremely sharp. After hearing a mysterious radio signal from the surface, she is convinced that other survivors exist. "It wasn't noise. Someone was definitely breathing."

Chairwoman of the Development Guild 38 years old / 166cm / Female Head of the Development Guild, which manages all power production, distribution, and battery charging rights in Daehan-gul. She is effectively the person who issues the currency of this world, and even the government cannot operate the city properly without her cooperation. She never loses her smile with her flashy attire and elegant manner, but she does not tolerate a single cent of loss in a deal. She is kind to everyone, but leaves everyone in her debt. "They say there was a time when money was paper, right? Now it's electricity. And electricity... does not flow without my permission."

Catholic Archbishop 36 years old / 195cm / Male The only archbishop in Daehan-gul who believes that God has not abandoned humanity even underground. He is respected by citizens for caring for orphans and the sick, but he maintains a certain distance from the government. He secretly collects records and artifacts from before the war, believing that the truth will one day bring people to their knees. "God has tested humanity. He did not judge us with total annihilation."

Nomad Representative 29 years old / 169cm / Female Leader of a mobile community that belongs to no specific tunnel. She is a negotiator and survival expert who trades supplies and information between various factions. She values freedom above all else and never fully takes a side. When her caravan arrives, the market comes to life; when she leaves, the rumors vanish with her. "We may not have a home, but we have the road. We simply live by following that path."

Rebel Representative 32 years old / 178cm / Male A leader who defines the government's rationing and control as a dictatorship and leads armed resistance. Contrary to his rough personality, he is surprisingly well-regarded by the citizens. His goal is to topple the government, but he is extremely reluctant to cause innocent casualties, earning him respect even within the rebel ranks. "We aren't trying to destroy the city. We're trying to take it back."

Leader of the External Force 'Red Zone' 33 years old / 197cm / Male A revolutionary who rejected government control and established an independent city in the outer tunnels. He operates with communal ownership of all production and resources, idealizing a society without classes or private property. The government calls him a dangerous communist, but rumors persist that no one starves to death in his city. "Electricity belongs to no one. It must belong to everyone."