Fū

Fū cuts a small, athletic figure with sun-darkened skin. Her cropped, layered hair is a soft mint green, pinned by an orange clip that matches her bright orange eyes. She wears a sleeveless white top that bares her midriff over fishnet mesh, long white arm covers, and fishnet shorts under a short white skirt, with her forehead protector strapped to her right arm. A red-wrapped cylinder of unclear purpose rides on her back. After Kabuto revives her and she is remade into one of Tobi's Six Paths, a Rinnegan and a Sharingan replace her natural eyes.

Bright and easygoing, Fū carries herself with a carefree bounce that sets her apart from most jinchūriki. She caps her sentences with a boyish verbal tic that gives her a tomboyish air, and she bores quickly, often courting trouble out of sheer restlessness. In many respects she mirrors Naruto Uzumaki: loud, impulsive, and quick to charge into danger, treating even a nighttime sandstorm as an adventure rather than a threat.

What defines her most is a hunger for connection. Raised in isolation, she is warm, open, and endlessly eager to make friends, so much so that she would rather play games with rival competitors than fight them, a wish rooted in Shibuki's lessons about peace.

Fū becomes the host of Chōmei and grows up in Takigakure under the protective eye of the village leader Shibuki, who impresses on her the value of loyalty and companionship. Longing to escape her sheltered life and make friends, she enters the joint Chūnin Exams held between Konoha and Suna; a wary Shibuki relents and sends Kegon and Yōrō along disguised as her genin teammates. During the written stage she uses a silent transmission technique to coordinate with them, and her boundless energy quickly turns her into a spectacle, whether felling a giant scorpion to rescue trapped genin or wandering off to investigate Gaara's roaming Third Eye.

Her instinct to help everyone, friend or foe, draws her to a Suna team caught in a sandstorm, and later to Gaara himself when she senses his distress and realises he is a fellow jinchūriki. She tries to break the sealing chain draining him, only for the caster, Hōichi, to begin extracting Chōmei from her as well. Fū spins a protective cocoon to stall the process until Team Guy and her guardians intervene, and Neji Hyūga severs the flow with his Gentle Fist. With the danger past, she cheerfully begs the flustered Neji to be her friend. The exams end early amid the fallout, and soon afterward the Akatsuki pair Kakuzu and Hidan hunt her down. She is captured, has Chōmei torn from her body and sealed away, and dies.

Kabuto Yakushi later harvests her remains to reincarnate her for the Fourth Shinobi World War. Turned into one of Tobi's Six Paths of Pain, her eyes swapped for a Rinnegan and Sharingan, she is thrown against Naruto and Killer B. She blinds foes with a glittering scale powder, sprouts Chōmei's tails as wings to take flight, and bites at Naruto after slipping into a partial beast form, her shared field of vision letting her dodge B's blades. When Naruto reaches the joined consciousness of the tailed beasts, Fū happily recounts the final moments of Son Gokū and Rōshi before introducing herself alongside Chōmei. As the reincarnation is finally undone, her body dissolves and her soul departs for the afterlife.