Several Shinigami are in pursuit of a Sword Beast. Among them is vice-captain Shuhei Hisagi, and his Zanpakutou, Kazeshini. Kazeshini takes on the Sword Beast and is able to push him back, but before he can land a killing blow the Sword Beast suddenly reverts back into his sword form. Hisagi commends Kazeshini, having not witnessed the anomaly, and Renji and his Zabimaru arrive too late to be of assistance. The two lieutenants comment on how the Sword Beast have become scarce and deduce that probably there are not many of them left. When the lieutenants leave Kazeshini tells Zabimaru about the way his fight with the Sword Beast ended.
The Zanpakutou spirits have been monitoring the movements of a specific Sword Beast, that is known for draining other spirits reiatsu, and Kazeshini tells them about the Sword Beast he fought. Zabimaru explains that Sword Beasts have limited amounts of reiatsu, which will eventually be depleted, at which point the Sword Beast will revert to its sword form. But the Sword Beast they're after can steal the reiatsu from other Zanpakutou and use it as his own. Ruriiro Kujaku comments that he has this power as well, but Kazeshini says that as a Zanpakutou this Sword Beast surpassed his master, and once his master died he was freed to do as he pleases. The spirits realize that this is the worst foe for a Shinigami, and so they resolve to go after him and finish him themselves. Later that day, Momo Hinamori, Rangiku Matsumoto, and Nanao Ise are having dinner and drinks along with Tobiume, Haineko, and Katen Kyoukotsu. When the evening concludes Momo and Nanao are forced to carry the inebriated Rangiku to her quarters, while the three Zanpakutou spirits say they wish to hang out among themselves. The lieutenants agree, but instead all the spirits gather together to mount an attack against the reiatsu stealing Sword Beast.
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