on Flux takes place in a weird, dystopian future. The protagonist is a tall, leather-clad, assassin- and acrobatics-capable secret agent from the nation of Monica. Her aim is to infiltrate the strongholds of the neighboring country of Bregna, which is governed by Trevor Goodchild, her sometimes-rival and sometimes-lover. Bregna depicts a police state, while Monica embodies a dynamic anarchist society.