Isaribi is a citizen of the Land of the Sea. She was a human test subject under the control of Amachi, who in turn used to work for Orochimaru. Isaribi has purple hair and black pupiless eyes. Her face, arms and legs are wrapped in bandages that covered scales and she wore a sleeveless tunic-blouse with brown shorts. She also wore a simple yellow sash around her waist. When she transformed she turned green in colour and took on the appearance of a humanoid fish-like creature. Isaribi is shy and withdrawn due to her past, but at the same time a rather rude and cynical girl. She brings misfortune to people solely by order and for her own benefit, as she wants to return to a normal human appearance. Isaribi is able to be friends, she initially does not believe Naruto and his comrades, but over time she happily accepts their friendship, and is also happy with the trip to Konohagakure, although initially she is not sure if she is allowed to come there.