The country is a major producer of diamonds they provide much of the basis of conflict in the anime series. Most of the action takes place in Marinera, the land of eternal spring, located somewhere in the South Seas.
The manga on which it is based is one of the much-read works produced for adolescent Japanese girls that features a healthy proportion of gay men and beautiful teenagers aka bishounen (beautiful boys). Patarillo! is set in a society much like ours in most ways, with one decided twist.