"A Hole in the Heart: The Other Jinchūriki" (心の穴 もう一人の人柱力, Kokoro no Ana — Mō Hitori no Jinchūriki) is episode 318 of the Naruto: Shippūden anime.
Gyūki notifies B who had stopped for yet another bathroom break that Naruto was far ahead of them, to the beast's exasperation Motoi catches up to B and informed them that he had been sent to assist them. As they proceed towards the battlefield, a small faction of the White Zetsu Army nearby plotted an ambush on the duo. Kabuto Yakushi who had also located B decided to enable another one of his special war potentials in order to capture Killer B. As the coffin emerges from underground — comically uncovering the White Zetsu in the process — the contents of the coffin is revealed to be Blue B, the previous jinchūriki of the Eight-Tails. As the two parties converse, Blue B advises them that he was not in control of his body and that they needed to escape but B notes that without Gyūki, he did not pose as much a threat as he would have. Blue B, however, enters Version 2, shocking B and Motoi. It is then revealed that it was Orochimaru's experiments and actions which brought about Blue B's death and Gyūki's rampage some thirty years prior. As the two men fight in their respective Version 2 states, it is revealed that Orochimaru had infiltrated Kumogakure, drugged Blue B, and extracted Gyūki who launched into a mindless rampage in order to collect some of the beast's cells. Ultimately, with some help from Motoi, Killer B is able to convey his feelings to Blue B who is glad to know that B had found something to fill the void left by being a jinchūriki. As his body deconstructed, Blue B ordered B to end the war. With this, B rushed towards the battlefield noting that his war had just begun.
|Naruto Uzumaki||うずまきナルト||Uzumaki Naruto||Junko Takeuchi||竹内 順子||Takeuchi Junko|
|Killer B||キラービー||Kirābī||Hisao Egawa||江川 央生||Egawa Hisao|
|Eight-Tails||八尾||Hachibi||Masaki Aizawa||相沢まさき||Aizawa Masaki|
|Motoi||モトイ||Motoi||Daichi Endō||遠藤 大智||Endō Daichi|
|Fourth Raikage: A||四代目雷影・エー||Yondaime Raikage: Ē||Hideaki Tezuka||手塚 秀彰||Tezuka Hideaki|
|Fukai||フカイ||Fukai||Yasuhiko Nemoto||根本 泰彦||Nemoto Yasuhiko|
|Kabuto Yakushi||薬師カブト||Yakushi Kabuto||Nobutoshi Canna||神奈 延年||Kanna Nobutoshi|
|Zetsu||ゼツ||Zetsu||Nobuo Tobita||飛田 展男||Tobita Nobuo|
|Doctor||医師||Ishi||Kōsuke Gotō||後藤 光祐||Gotō Kōsuke|
|B (During Childhood)||ビー (少年時代)||Bī (Shōnen Jidai)||Mariko Higashiuchi||東内マリ子||Higashiuchi Mariko|