Mayuri Kurotsuchi vs. Sawatari

Mayuri Kurotsuchi vs. Sawatari is one of the battles between the Bount and Soul Society during the Bount Invasion of Soul Society. It is the battle between the Bount, Sawatari and the 12th Division Captain, Mayuri Kurotsuchi.

Prologue
Some time later the Bount's invade Soul Society. Sawatari is present when the hired thugs open the gates. Once the Bount's are inside, Kariya gives each Bount a task. While Yoshi and Mabashi make distractions, Koga and Sawatari are to eliminate the thirteen captains of the Gotei 13. Sawatari embarks on this task, being followed by 12th Division Captain Mayuri Kurotsuchi. As they each engage in their own battles Sawatari feels the death of Mabashi from across the Seireitei. Sawatari brushes it off and makes the statement that he knows he is being watched and asks the spy to reveal himself. Mayuri steps forward and informs Sawatari that he tried to copy the Bount by hiding his reiatsu. Sawatari laughs, and tells the Captain that although his reiatsu was masked, there was no way to conceal the Captain's lust for blood. Mayuri then asks Sawatari where Maki Ichinose is. Sawatari says he felt Ichinose's reiatsu disappear and thought he was dead. Mayuri says it is a shame, but now he will aim the revenge he wanted on Ichinose towards him instead. Sawatari delightfully tells him to bring it, informing him of his task to kill the 13 Captains.

Battle
Sawatari and Mayuri Kurotsuchi face-off, each confident that they can beat their opponent. Sawatari uses his ability to disappear from sight. Mayuri, having gathered knowledge about this Bount from Rangiku Matsumoto, knows he can only emerge from large flat surfaces, so he finds a high spot. Just then Sawatari demonstrates what he has gained since coming to the Soul Society. Now he can emerge from the air as well. Mayuri brushes it off, and attempts to cut Baura with his Zanpakuto, but the Doll's hard skin makes that impossible. Using this as a surprise, Sawatari's Doll, Baura, rips off Mayuri's arm. Sawatari, feeling the fight has come to a sad and quick finish, insults the captain.

However, Mayuri uses his Hojiku-Zai "regenerative serum" to regenerate his lost arm. Intrigued, Sawatari insultingly praises the captain, to which Mayuri tells him to shut up. Sawatari begins to use his powers to toy with the captain, but Mayuri uses his Hidden Kusarigama to hook the side of Baura and draws Sawatari in close and stabs him in the arm. Baura manages to shake Mayuri off and Sawatari prepares to go on the offensive once more. But, Sawatari realizes that his arm has been paralyzed, and Mayuri attacks him and knocks him off Baura, pinning him to the ground. Baura attempts to help, but Mayuri threatens Baura to stay where he is. Mayuri again pierces Sawatari's arm and laughs at the fallen Bount. Sawatari, still having a few cards to play, orders Baura to release a large amount of dirt and sand.

This knocks Mayuri off of him, allowing Sawatari to get back on top of Baura and retreat so that he can heal. While in his sub space, Sawatari realizes his arm is not healing completely as Ashisogi Jizō's effect has not gone away. Feeling he has been crippled, Sawatari begins to think that he has lost. This angers him, and he refuses to accept defeat by the first captain he has come across. Having gotten far away, Sawatari feels its safe to resurface and regain his strength. Suddenly Mayuri emerges from behind him. An astonished Sawatari asks how it is possible Mayuri had gotten there so fast. Mayuri reveals he can track Sawatari via a small device he created. Mayuri had created this device after getting information from Rangiku, who had fought Sawatari in the Human World. Sawatari then realizes Mayuri had been tracking him from the beginning and Mayuri sadistically asks him if he really thought the two had met by accident.

With his arm still paralyzed, Sawatari orders Baura to attack with everything he has got left. Baura begins to expel different Kidō blasts it had eaten from earlier battles. Mayuri dodges most of it, but Baura's speed catches him off-guard and he again loses his left arm. Mayuri, having no more medicine, releases his Bankai. Across the Seireitei many others sense this battle. Mayuri's Bankai emits its poison fog and Sawatari decides to give all of his Reiryoku to Baura. Baura begins to grow larger and tries to devour Konjiki Ashisogi Jizō. Mayuri releases his Bankai's hidden spikes which send Baura falling back. He sends his Bankai across the field and it crashes into Baura and Sawatari. Sawatari, having exhausted all of his Reiatsu, begins to die from the poison. Realizing the end is near, Sawatari begs Mayuri for the antidote, but Mayuri just laughs at him. Sawatari yells for help again as his body turns to dust before Mayuri.

Aftermath
Sawatari dies from being poisoned by Mayuri's Konjiki Ashisogi Jizō, having exhausted all of his Reiatsu, which had allowed him to stave it off. Mayuri Kurotsuchi loses his left arm after finding that he has used up all of his Hojiku-Zai in regenerating the damage from the early stages of the battle. He returns back to the Shinigami Research and Development Institute to restore his lost arm.