The Japanese Sickle Weasel legend tells of a creature that is Weasel-like in form. It unfortunately also has razor sharp fins that extend all around it's body. The Kamaitachi likes to harass human swimmers by swimming underneath them and cutting off any appendage it can. It is said that The Kamaitachi used to have a human form but was cursed and had it's own legs removed. In revenge for the curse, it's mission is to cause misery to others.