Ouchibishi is a kind of Japanese family crest "Hishimon" or "Hanahishimon". Fortunately, it is "Hishi", but this design was used by Mr. Ouchi. There are " Yamaguchi Hishishi" and "Uchida Hisshi" in similar designs. Or, the one with this design called " Yamaguchi Hishishi" and the one with the central Onikabishi as the Hanabi is called Ouchi Hishishi.
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Mukai