Isaribi (漁り火) was a human test subject under the control of Amachi, who in turn used to work for Orochimaru. Isaribi was part of a test that was meant to give shinobi the ability to breathe and operate underwater. Isaribi was one of the first test subjects, and was not the final version. She was sent back to the Land of the Sea to spy on the ships leaving port. Due to her bandages, which were used to cover the permanently scaled parts of her body, the villagers attacked her and vandalized her property. They feared and hated her, as she was the only person to return from being "spirited away". Because of this, Isaribi is very cynical of anyone who tries to be friendly with her (she had much distrust for Naruto Uzumaki when they first met). She was very distant because of the hatred she experienced. Naruto described Isaribi and himself as being very similar, if not exactly the same.