The Army Infantry 109th Brigade was embroiled in a collective drug trafficking case last year. Prosecutors discovered that four non-commissioned officers and soldiers were involved in selling "zombie" vape cartridges. Shockingly, a conscripted soldier, upon learning that his comrades were secretly dealing drugs, advised Sergeant Gao to first confiscate the cartridges without reporting them. Instead, they were later resold privately to other soldiers, turning the case into an internal "black-on-black" scheme. The incident exposed a complete breakdown of discipline within the unit.