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Last name Shiromoto (Shiromoto
, Масару
) , in the world, is a very rare surname. The surname Shiromoto is characteristic of Brazil, where it is a very rare surname, Peru, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Brazil, the United States, and Peru. More frequently, Shiromoto is the forename as well as the last name.