Rangiku Matsumoto vs. Nakeem Grindina

 is a fight taking place during the Arrancar Invasion between 10th Division Lieutenant Rangiku Matsumoto and Arrancar #14. Nakeem Grindina.

Prelude
Following Ichigo Kurosaki and his allies' brutal encounter with Ulquiorra Cifer and Yammy Llargo in Karakura Town, 10th Division Lieutenant Rangiku Matsumoto joins a Strike Force headed by 6th Division Lieutenant Renji Abarai, meant to assist Ichigo and his friends in the new conflict, as Renji's first pick for the team. Upon reuniting with Ichigo at Karakura High School, Rangiku stands by while Rukia Kuchiki forces Ichigo to battle a Hollow and later leaves with the rest of the Strike Force to discuss the situation at the Kurosaki Clinic.

Simultaneously, Ulquiorra returns to Las Noches and relays his confrontation to Aizen and the other Arrancar through Solita Vista, where they learn that Ulquiorra determined Ichigo was not worth killing and thus left him alive. Though Grimmjow Jaegerjaquez criticizes him for this since it presents the risk of Ichigo growing too strong to kill later, Aizen determines that Ulquiorra did nothing wrong, to Grimmjow's frustration. That night, Grimmjow comes to Karakura Town himself and is joined by Nakeem Grindina and the rest of his Fracción once the sun sets. When Shawlong Koufang notes that he sensed several different strong Reiatsu on their way here, Grimmjow has them utilize Pesquisa in order to accurately determine how many combatants are nearby, and once they are all detected, Grimmjow orders his Fracción to kill anyone with Reiatsu.

During this, at Orihime Inoue's apartment, Rangiku finishes eating dinner with Orihime and praises the quality of the food, to Orihime's surprise. When Rangiku notes that the food was a lot better than it looked, Orihime tearfully thanks her due to no one ever eating what she prepares despite how much she cooks to the point that she was beginning to think something was wrong with her taste buds before they enjoy ice cream for dessert and relish in how good it tastes. Upon sensing the Reiatsu of the Arrancar as they move out across Karakura Town, Rangiku joins Hitsugaya on the rooftop and assures him that her Gigai will keep Orihime safe, leading Hitsugaya to warn her that the Arrancar are coming. Suddenly, Shawlong and Nakeem appear before Hitsugaya and Rangiku with Sonído, shocking Rangiku with their speed.

Battle
Shortly afterward, Nakeem confronts Rangiku and quickly overwhelms her, leaving Rangiku seemingly incapacitated and lying on another rooftop next to a spatter of blood. However, she remains conscious and focuses on a communicator in her hands as she waits for a transmission. Suddenly, Rangiku's communicator informs her that Gentei Kaijo has been authorized, and when a startled Nakeem attempts to stomp on her, Rangiku easily holds his foot back with her wrist and thanks the member of the Shinigami Research and Development Institute who told her this as she informs Hitsugaya and Renji of the authorization.

Elated by this news, Rangiku reveals the division insignias on her chest and performs Gentei Kaijo, resulting in a large column of Reiatsu surging out of her body into the sky. Emerging from the swirling Reiatsu, Rangiku explains to Nakeem that Gentei Kaijo is the result of Gotei 13 captains and lieutenants being required to wear a Gentei Reīn somewhere on their bodies when they enter the Human World in order to avoid inadvertently harming or altering Humans with their power, causing their powers to be reduced by up to 80%, before concluding that their strength is consequently quintupled through Gentei Kaijo.

Rangiku blocks a punch from Nakeem with her forearm and criticizes him as being too slow. When Rangiku requests that he come at her using the speed he confronted her with and wonders what this move is called, Nakeem moves behind her with Sonído as she attempts to slash at him and identifies the technique prior to throwing another punch at her, only for Rangiku to reappear behind a startled Nakeem with Shunpo, which she identifies to him in turn while slashing vertically through the right side of his torso. When Rangiku releases her Shikai, Haineko, a frightened Shawlong orders Nakeem to retreat for now. However, as he attempts to flee, Rangiku slashes through Nakeem on both sides of his torso, killing him.

Aftermath
With Nakeem's corpse falling to the ground, Rangiku sees Hitsugaya bleeding profusely from the injuries incurred during his own fight and frantically asks Orihime to tend to him immediately, later bringing a badly wounded Rukia to her as well. The next day, with both of them fully healed, Rangiku surprises Hitsugaya by pushing the back of his head between her breasts and covering his eyes as she challenges him to guess who she is. Once Hitsugaya does so and she learns that he is writing his report, Rangiku assumes that he mentioned how easy Gentei Kaijo made their battles, but is mortified to learn that the Arrancar they fought were just Gillians and that them needing Gentei Kaijo to defeat foot soldiers means that they cannot take the Arrancar lightly.