After the fall of AI civilization in 2356, mankind splits into three strata: the lower class, the middle class, and New City dwellers. Freedom Alliance undercover agent Chloe goes undercover in Saul Prison as a female inmate, tasked with finding her contact codenamed Owl and securing a vital chip. Using both force and strategy, she unites prison factions to form a sister alliance, infiltrates the prison’s top circle via underground fights, and slays the ruthless Tuna in a brutal prison deathmatch. Working in tandem with undercover guard Luna, she destroys the warden’s office and frees the whole prison from tyranny.