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In the world, 繁男 (Shigeo , 繁男 ) is quite a rare epicene forename. The first name 繁男 is habitual in Japan, where it is quite a rare epicene name, the United States, where it is a very rare primarily boy's, but scarcely female name, and Indonesia, where it is a very rare boy's name. Not in comparison with a country's population, the name is most common in Japan, China, and the United States. More frequently, 繁男 is the last name as well as the forename.