Miko was a girl that originated from the Pacific somewhere. Probably from Hawaii. The first Miko was part of the Island Fun group in 1988, and Island Fun could only mean Hawaii. The dolls were dressed in bathing suits and had a lei around their neck.
This was the first bathing suit line since the Malibu-series in the 70's. Every year since then a new set of bathing suit dolls have been released with one doll of each ethnic version.