Fuu "Seven-Tails Jinchuuriki"

Fuu (フウ) was a kunoichi from Takigakure and the jinchuuriki of Choumei, the Seven-Tails. Choumei has been captured and sealed by Akatsuki, causing her death when the beast was extracted.

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Upon her reincarnation, Choumei appears to have been resealed within Fuu.

(Source: Narutopedia)