Junichiro Watson was not born with a fish head.
It is something that developed over his life.

His gills first started to show when he was 2 years old. Later his scales came in, first on his forehead and then on his nose.

By the time he was 27, his head had made a complete transformation.
Based on the shape and color of his head, Ichthyologists (fish experts) believe that he is a type of Wrasse.

Junichiro still lives an ordinary life, but he must submerge his head in water every 57 seconds. He carries a head sized aquarium behind him in a small wagon for this purpose.

If you see Junichiro at a local market or sunbathing on the beach, he asks only that you not be alarmed by fish head.