Ai no Kusabi - S01

In the future, on the planet Amoi, a supercomputer called Jupiter governs society. The human population is predominantly male, with a privileged light-haired elite class permitted to keep dark-haired "mongrels" as temporary pets. Iason, a member of the elite, finds a mongrel named Riki in the slums and chooses to take him in. But when Iason keeps Riki beyond the socially accepted time, rumors begin to swirl about the nature of their relationship.