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Across the world, Хисаясу (Hisayasu , 久保 , Хисаясу) is a rare predominantly masculine, but very infrequently girly first name. The given name Хисаясу is characteristic of Eastern Asia, particularly China, where it is a very rare dominantly male, but seldom feminine name, and Japan, where it is a very rare boy's name. Very seldom, Хисаясу is the last name as well as the forename.
Хисаясу is also a name for the fictitious and mythical characters: .