Isshin Shiba & Masaki Kurosaki vs. White

 is a fight between 10th Division Captain Isshin Kurosaki and experimental Hollow White, with Masaki Kurosaki joining the fight later on.

Prelude
After Tōshirō Hitsugaya informs him of two Shinigami dying in Narukishi last month, Isshin heads off to investigate by himself, leaving Rangiku Matsumoto and Hitsugaya to run the Division in his stead. When Rangiku tries to run after him, Hitsugaya tells her to let him go, as he is going alone because he knows it is dangerous. When Rangiku says she knows that, which is why they should go, Hitsugaya states with their current power level, they would only get in his way.

Elsewhere, in a laboratory, an unidentified object floats in a tube. When a figure asks if anything was obtained, Gin Ichimaru states they did not, and Kaname Tōsen explains how even though they were able to equip Hollows with target Hollowfication, it is too virulent and does not work on regular souls or division members. Stating that is fine, the figure says they will be able to find the Visored and carry out Hollowfication experiments, therefore "killing two birds with one stone". Stepping into the light, the figure, revealing himself to be Sōsuke Aizen, tells Gin and Tōsen everything will go according to plan.

Meanwhile, two 10th Division officers, moving through Narukishi, comment on how it is a rainy night. When one of them reveals the two Shinigami who were stationed there before them died on a rainy night, Isshin, appearing behind them, says it is good to know rainy nights are dangerous. When the Shinigami ask him why he is there, he says he is looking for a toilet. When the Shinigami call him out on his boldfaced lie, he tells them to go home if it rains, as he wants to "pee alone". High above them, a shadowy figure stands behind the clouds.

At the Ishida residence, Masaki is asked by her aunt how school is going for her. When Masaki states she is happy going there, her aunt clarifies that she is asking about the school, not Masaki. When Masaki begins to talk about how the school lets students get extra servings of food at lunch, her aunt, cutting her off, asks about the "holy training". When Masaki says she is doing the training "little by little", her aunt, yelling at her, asks if she understands her position, stating the Ishida family has accepted to train Masaki, the last of the Kurosaki family, as a Quincy. As Masaki comments on the meat being delicious, Ryūken Ishida, interrupting them, tells his mother to stop, as her voice can be heard from outside. As his mother, heading back to her room, says she will have his food prepared, Ryūken asks towards his father. Stating he is at Funfte Field, she says she would like to know when he will be back as well. When Ryūken asks Masaki to forgive his mother for taking her anger out on her, Masaki, saying she is not angry, thanks him for the food and heads back to her room. As Katagiri prepares Ryūken's dinner, Ryūken, stating Masaki knows his mother allowed her into the Ishida family for the sole purpose of protecting its pure Quincy bloodline, says he is not sure if she wants to marry him. When Katagiri says Ryūken thinking marriage among Quincy should be based on love is kind, and that kindness will make Masaki happy, Ryūken, asking why she thinks he is kind, says he wants Masaki to be happy because if they are not happy, they cannot look positively at the future of the Quincy.

Meanwhile, the two Shinigami, noting it has begun to rain, discuss going back to Soul Society, one of them saying they can stay hidden for now because Isshin will do something about this. Thinking Shinigami are being targeted because of their Reiatsu, Isshin, deciding to draw it out, exerts a large amount of Reiatsu. As the two Shinigami comment on his Reiatsu, one of them is killed by an unseen assailant. Hearing screams, Isshin, realizing it did not react to his Reiatsu, stops in his tracks when something lands behind him. Upon seeing the eerie figure, Isshin wonders what it is.



As the Hollow creature, turning, roars at him, Isshin, noting its unusual black color and closed Hollow hole, states its Reiatsu is still that of a Hollow. As the Hollow creature charges at him, Isshin unsheathes his Zanpakutō. Back at the laboratory, as Aizen wonders why Isshin is in Narukishi, Tōsen reveals he did not report he was going there, and Gin states this will cause trouble. Referring to Isshin's arrival as an "unexpected harvest", Aizen asks to see the fight up close.

At the Ishida residence, Masaki, sensing a powerful Reiatsu drawing near, runs into the hallway only for Ryūken to ask her where she is going. Telling her Quincy only fight Hollows after the Shinigami doing so die, he says even in that case, they should let gemischt like Katagiri go, as echt Quincy like themselves should not be drawn into fighting so often.

Battle
Using Hohō to stop himself in midair, Isshin notes he is falling behind. Blocking a strike from the Hollow creature, he notes how even though his foe's appearance is that of a Hollow, it feels like he is fighting a Shinigami. As he thinks to himself that this is a hard struggle, a member of the 13th Division, calling out to him, tells him Karakura Town is under the jurisdiction of the 13th Division. As Isshin realizes he has passed the jurisdiction boundary, the Hollow creature.moving away from him, charges at the other Shinigami. As Isshin yells at him to run, the Hollow creature obliterates the Shinigami with a Cero charged between its horns.



As both Masaki and Ryūken notice the explosion, Masaki begins to run again. When Ryūken tells her to wait, Masaki explains to him how even though she admires how he takes everything and everyone into consideration before acting, if she were unable to save someone because of a custom, she would not be able to live with herself. As she runs off, Ryūken tells Katagiri to prepare the "Reishi armor".

Startled by the power of the Cero, Isshin, stating that is not how a Menos fights, clashes with the creature. Stating it is impossible for a creature like this to exist without Soul Society knowing, Isshin asks who is protecting it. When he does not receive an answer, Isshin, stating he will attack him regardless of whether he answers or not, releases his Zanpakutō, Engetsu. As he prepares to attack the Hollow creature, Isshin is attacked from behind by Aizen. As Isshin falls, Aizen, commenting on the cloak he is wearing, reveals it can shield the wearer from view if infused with Kidō. As he thanks Kisuke Urahara for leaving such a "wonderful parting gift", Isshin, getting up, realizes the slash was not from the Hollow, but from a Zanpakutō. As Isshin, knowing a traitor must be hiding, calls out to them to reveal themselves, Gin states he must have realized he was not hit by the Hollow. When Aizen states he is leaving, Gin asks if that is okay. Aizen says Isshin will not be able to use his Bankai with the wound he has just received, and if the "sample" can be defeated by a captain-level Shinigami using only Shikai, it was a failure in the first place. Telling Aizen to call it "White", Tōsen states it is completely different from all the types of Hollow they have created thus far, as it is based on the soul of a Shinigami. Apologizing, Aizen states calling it "White" because of his inner "whiteness", even though it is clad in black armor, is something he finds ironic.

As Isshin clashes with White once more, the wound on his back spurts blood. When White tries to attack him from the side, Isshin steps on the blade, forcing White to the ground. As Isshin thinks to himself how he cannot fix his Reiatsu because of his wound, and how he will not be able to use his Bankai if this persists, White, roaring, slashes at Isshin, knocking him backwards, and lunges after him. Telling White not to underestimate him, Isshin generates a huge, flame-like wave of Reiatsu along his blade. As he and White clash, resulting in a large explosion, Masaki, watching from the ground, is almost hit by one of White's severed blade-arms.

After clashing with White once more, Isshin states he is still a formidable foe even while missing an arm. Charging at him again, White slashes at Isshin, who, blocking the blow, struggles to hold him off. Charging another Cero between his horns, White dodges a Hleig Pfeil. Turning to look at the attacker, Isshin sees Masaki with her Spirit Weapon, a bow, which has another arrow prepared. As Tōsen says he will kill her, Aizen, stopping him, says to wait and watch what happens. As White launches himself towards Masaki, Isshin, trying to stop him, is halted by his wound. Trying to shoot White with more Hleig Pfeil, Masaki, realizing she cannot hit him while he is moving, allows herself to get attacked. Saying she has him, Masaki shoots White through the head.

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