In the fictional Badge War Season 4 on a remote, storm-lashed Jeju Island extension, the rules turn brutal: losers face public "penalty games" that strip dignity... and winners claim private "rewards." As alliances fracture and bodies collide in mud and rain, rivalries ignite into raw, addictive encounters. Every member fights not just for badges — but for control, release, and the thrill of breaking (or being broken by) their sisters under the "No Badge, No Mercy" system.