A slum where the descendants of criminals live. People on the other side of the border despised him as a "tribe" and were discriminated against. An orphan boy, Ludo, lived in a slum with his parent, Legt, and earned a living with his extraordinary physical abilities. But one day he is guilty of something he doesn't remember and is dropped into the abyss that even the slums fear ... What do you think about this manga?