Etna - A world of modern technology and incredible cruelty. Here, implants implanted into the body can give inhuman strength, dexterity, with them you can become invincible, live forever. Here, on Etna, savagery and barbarism reign. It is here that corporations and large gangster groups rule the ball. Klavborn, the largest mercenary corporation, has actually replaced the police and the government, gangs of sectorials terrorize residents, deikapi families keep the entire shadow business in their hands, and Haji clans control drug trafficking. In this world, it is difficult to remain law-abiding, it is difficult to earn honest labor, it is difficult to survive. And this is where a native of Earth comes in, dreaming of returning home...