Jū (ジュウ, Jū) is an honourable kunoichi raised in Kumogakure, whom is in the possession of two artefacts that awaited for the perfect vassal. It was she, who heard their calls. Consequently, Jū was fostered to be trained in seclusion and elsewhere in the village, and away from the potential dangers. Through that, the woman mastered the empowered simultaneous natures with the artefact and inevitably trained to be a splendid swordswoman. Indeed, this woman has been forged to become a weapon of the Cloud village, and earned the name Kumo no Shirosame (雲の白鮫, White Shark of the Cloud).