This is one of my favorite yaoi ever. Aside from Hua Hua yo long. It alwaya break my heart to watch the ova. But I prefer the novel because it shows the emotion of the characters. blah blah. So here is it. Please this is a mature content and boyXBOY. Dont read it if youre not a fujoshi. Ai no Kusabi takes place on the world of Amoï, which is ruled by a computer named Jupiter. Jupiter has introduced a number of strict social rules to society: Elites of Tanagura, Midas Citizens, and Mongrels from Ceres. The Elites' social status is determined by purity of hair color, not the commonly misconceived "blond to black" order. It is the purity of the genes that make them elite. Elite redheads are called "Rubies," blackhaired are called "Onyx." Mixed people are called Mongrels. The Elites, genetically engineered by Jupiter, are the highest social class and occupy the capital city of Tanagura. They travel to the satellite pleasure city of Midas, which has an independent slum area called Ceres.