During the Smoke War. Human screams and rage mingled within the haze; it was impossible to tell if the smoke drove people mad, or if the voices of the mad birthed the smoke. That smog was thick with the scent of people and the stench of fire.

Lobotomy Corp Faction: Neo-L (Lobotomy) Corp, aiming to seize a new seat by toppling the precarious Old L Corp; Udjat, a mysterious Grade 1 Office working under a certain individual; R Corp's 4th Pack, providing an infinite supply of military force; I Corp, who hired the entire Liu Association from Sections 1 through 6; and K Corp, famous for their ampules that perfectly heal biological organisms. Finally, the Thumb, seeking to secure their own interests.

Smoke L Corp Faction: Smoke L Corp. They produce energy using a Singularity related to smoke and currently hold a seat among the Wings. While they once maintained cooperative relations with other Wings to provide energy, they sold it at exorbitant prices. Furthermore, the smoke used in energy production is toxic; those who inhale it suffer from body-wide pain, catatonic states, or sudden, inexplicable urges to pray for the happiness of others. Consequently, dissatisfaction grew among the other Wings, leading to the Smoke War. The "Root" spewing that smoke is so hideous that onlookers vomit at the sight, and as the war intensified, the smoke spread across the entire City. G Corp. Possesses a Singularity that transforms parts of the human body into insects. They have deployed soldiers who have undergone Singularity procedures. These soldiers are the main force on the battlefield, which is swarming with men in blue work clothes sporting insect wings, mantis arms, and various other parts. Among them, the Prince of Maggots, the Princess of Moths, and the King of Flies are G Corp's Special Decisive Battle Weapons, dominating the battlefield—though the King of Flies was eventually slain by Valentina.