Dragon Ball: The Black Starfall

Dense black light, thick as ink, has engulfed this world for three whole years. The sky is forever a dreary gray-black, like a dirty curtain with no sun, moon, or stars in sight. The once-prosperous city has long since become a field of broken walls and ruins. From time to time, in the jungle of steel and concrete, the roars of inhuman creatures ring out. Martial arts, once the pillar of this world, have utterly collapsed.