Kazekage Ninja: The Rise of the Hidden Sand

As the current Jinchuriki of the Eight-Tails in Kumogakure, Killer B held an unparalleled position within the village. Moreover, his lineage added to his significance—he was the nephew of the Third Raikage, A, and the cousin of Tsukigami Kouichi. (Yes, this is canon.)

With his noble heritage and formidable strength, Killer B was deeply trusted by the Third Raikage. Whenever the Raikage left the village for battles or diplomatic missions, Killer B was often left behind to safeguard the village, a role akin to the position Rasa held in Sunagakure. Even the Eight-Tails, Gyuki, had a certain level of respect for him, allowing Killer B to reach the pinnacle of mastery as a Jinchuriki. His control over the Tailed Beast’s power rivaled that of Mito Uzumaki from Konoha and Bunpuku, the wise monk of Sunagakure.

However, despite his exceptional lineage, abilities, and character, Killer B lived under the shadow of fear and disdain from the villagers of Kumogakure.

This animosity stemmed from a traumatic incident—a rampage by the Eight-Tails.

Back then, Killer B was still a child, newly chosen as the Jinchuriki. Lacking the experience to control the Tailed Beast’s power, the Eight-Tails had broken through the "Iron Armor" seal, escaping his body and wreaking havoc in Kumogakure.

The chaos caused immense destruction to the village. Many elite Jonin sacrificed their lives under the Eight-Tails’ horns and massive hands.

It was only after the Third Raikage personally intervened, battling the Eight-Tails for three days and nights with his indomitable body, that the beast was finally subdued and resealed. (The scar on the Third Raikage’s chest came from this very battle.)

Although the Third Raikage and the village’s leadership worked tirelessly to downplay the incident—after all, Tailed Beast rampages were not uncommon in the history of ninja villages—the villagers of Kumogakure were not so forgiving. Their resentment toward the young Killer B was unrelenting.

This hatred was deeply rooted in Kumogakure’s ancient tradition of "blood vengeance."

In truth, this tradition was not unique to Kumogakure. Most ninja villages, originally formed by clans, shared similar practices. The interests of the clan were paramount. Harm inflicted upon one member was seen as harm against the entire clan; retaliation was often directed at the family of the perpetrator.

This tradition was a double-edged sword. In external battles, leaders loved to group blood relatives into the same squad. If an enemy killed one, the rest would fight with unparalleled ferocity, united in vengeance.