Kamaitachi
Kamaitachi shows up repeatedly as an antagonist throughout the GeGeGe no Kitarou franchise, starting with his debut in the Shonen Magazine story "Youkai Castle." The name literally translates to "Sickle Weasel," though it's worth noting that this particular version doesn't actually match the traditional weasel youkai from folklore—fans have pointed out the disconnect between the name and his actual design more than once.
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