Mayuri Kurotsuchi & Nemu Kurotsuchi vs. Pernida Parnkgjas

Mayuri Kurotsuchi & Kenpachi Zaraki vs. Pernida Parnkgjas is a conflict which takes place during the Quincy Blood War. It focuses on 11th Division Captain Kenpachi Zaraki and 12th Division Captain Mayuri Kurotsuchi's fight against Sternritter "C" Pernida Parnkgjas.

Prelude
After the Gotei 13 and their allies enter the Royal Realm, Mayuri enters separately at a different location in the city and proclaims that he is free to test the results of his research as he pleases, only to be shocked when Kenpachi appears behind him and affirms this. Kenpachi explains how the others had left while he was using the bathroom before noting that he does not have to worry about cutting them up by accident now, prompting Mayuri to admit that this also gives him an opportunity to eliminate certain "insects" as the two glare at each other. Shortly afterward, Yhwach orders his Schutzstaffel to split off to the five branches of the city in order to search for the enemy.

Eventually, Kenpachi and Mayuri, accompanied by Nemu Kurotsuchi, Ikkaku Madarame, and Yumichika Ayasegawa, encounter Pernida in a narrow alleyway. When Kenpachi wonders what it is, Mayuri ponders why a member of the Gotei 13 would ask someone else for information on something neither of them have seen before. However, Kenpachi decides to kill it and begins advancing as Mayuri and Nemu watch.

Battle
However, as Kenpachi prepares to attack Pernida, Mayuri is alerted by something and shouts for him to wait, prompting Kenpachi to leap back with a mangled arm as Mayuri expresses concern for him. Kenpachi notes that Pernida only got one of his arms and points out how he managed to split its head open in return, but Pernida's hood begins expanding, prompting a surprised Kenpachi to wonder what it is once more. As Pernida's hood continues to expand, Mayuri observes that it does not seem to be a battle-oriented function before admitting that he finds it creepy, prompting Kenpachi to note that he is surprised by this. Suddenly, Kenpachi's injured arm begins to twist and contort itself even further, forcing Kenpachi to rip it off with his other arm.

After Kenpachi pries his Zanpakutō out of the grasp of his detached limb, the arm is contorted further and further until it collapses in on itself, leaving nothing more than a puddle of blood. Mayuri commends Kenpachi for doing this unhesitatingly because his whole body would have been warped and squashed as his arm was if he had not torn it off. When Kenpachi repeats his question of what Pernida's power is, Mayuri notes that he does not know if Kenpachi is asking him or talking to himself before admitting that he does not know. Advising Kenpachi to keep his distance from Pernida for now, Mayuri has Nemu bind Kenpachi's arm stump with a tourniquet as Kenpachi wonders how he can kill Pernida without getting close, which prompts Mayuri to attempt to come up with a plan to do this.

Claiming that he was simply talking to himself, Kenpachi rushes toward Pernida despite Mayuri's protests and proclaims that he merely has to kill Pernida before its power can affect him before slashing partway through its body. However, Pernida survives this attack and breaks Kenpachi's legs, prompting Mayuri to step in and stab Kenpachi through the chest with Ashisogi Jizō. As Kenpachi looks back and curses him while coughing up blood, Mayuri notes that simply paralyzing Kenpachi's limbs causes everything else in his body to break before activating Ashisogi Jizō, Kyōdo Yon, which causes the face on Ashisogi Jizō to begin leaking a dark fluid from its eyes as it begins to emit a sound from its mouth.

Nemu tells Ikkaku and Yumichika to cover their ears because they will paralyzed if they hear the sound for more than four seconds. As Kenpachi collapses, Mayuri pulls out Ashisogi Jizō and notes that he needs Kenpachi paralyzed because his brute strength is still useful. Pointing out how Pernida being paralyzed as well means that The Compulsory is not linked to its main body, Mayuri reveals that Pernida sends its nerves into its opponents' bodies to forcibly control and break them. When Pernida extends several shadowy tendrils toward him, Mayuri coats them in a liquid which exposes Pernida's nerves while claiming he has nothing to fear from this, which causes Pernida to reel back and scream in pain as its cloak begins to dissolve.

As Mayuri tells Kenpachi that he stabbed him for his own sake, Kenpachi manages to move his eyes, prompting Mayuri to admit this is impressive before noting that he will simply improve the paralytic abilities of Ashisogi Jizō. Noting that he cannot help but feel grateful to Kenpachi for exposing the true nature of The Compulsory and giving him a reason to improve his Zanpakutō, Mayuri turns to Pernida and claims that Pernida should donate its body to him for his experiments in order to honor Kenpachi's noble sacrifice. However, Pernida responds by tearing apart its hood to reveal a giant hand with an eye on its palm, which Mayuri identifies as the left hand of the Soul King. As Pernida extends a large arm out of its cloak and towers over him, Mayuri notes that the left arm being somewhere on its own matches Mimihagi's past actions.

Pernida sends more shadowy tendrils at Mayuri, who merely blocks them with a strange barrier before admitting that his happiness outweighs his curiosity as to why the left arm of the Soul King is serving Yhwach. When Ikkaku questions why he is happy, Mayuri proclaims that he has a completely new subject to research, and as Pernida extends more tendrils out from his body, Mayuri eagerly tells it to show him more. Pernida claims it is Pernida Parnkgjas and not the left arm of the Soul King, prompting Mayuri to state he decides what its name is because he found it before deciding to simply decide the spelling instead. Admitting it does not understand what he is saying, Pernida reasons that anything Mayuri is saying is bad because it cannot understand them before extending its tendrils into the ground and forming a large hand out of stone.

Noting that Pernida can also take control of inorganic objects, Mayuri jumps back to avoid being crushed by the hand before using Jabarakaina to grab the top of a nearby tower. However, Pernida's tendrils pursue him up the side of the tower and creating a giant stone hand out of the wall facing him, which pushes Mayuri back before seemingly crushing him with the aid of another stone hand. When an explosion occurs between the two hands, a shocked Ikkaku wonders if Mayuri exploded, only for Mayuri to emerge unscathed while revealing that this was merely his armor exploding.

Upon hearing Yumichika warn him about touching the ground covered by Pernida's nerves, Mayuri presses a button on the heels of his shoes, causing him to stop and float in midair as discs of Reishi appear underneath his feet. Mayuri reveals that he is using Hirenkyaku and points out how Pernida covering the ground with its nerves is meaningless if he does not step on them before blowing off Pernida's pinkie with an explosive in order to take a sample. As Pernida screams in pain, Mayuri douses the pinkie in preserving liquid to maintain its freshness, but is surprised when an eye appears on the pinkie and unleashes more tendrils, which make their way into Mayuri's arm. When his arm bursts, Mayuri quickly reassembles it and reveals that he has rearranged its contents before claiming that Pernida cannot control him so easily. Mayuri admits that he has not operated on his own arm in a while, prompting Pernida to ask him if he is nervous. When Mayuri grins and asks it if he looks nervous, Pernida decides to make him more nervous.

Pernida's severed pinkie begins to sprout additional fingers and grow into a full hand before leaping toward Mayuri, who blows it back with an explosive. As Mayuri notes that it will be difficult to take samples back with him if they keep growing, he notices Pernida ripping off its middle finger, which begins to grow into another hand itself as Pernida complains about blood getting in its eye. Seeing this, Mayuri remembers when he read up on the functions of the Soul King's two arms as a boy, where he learned that the right arm governed stagnation while the left governed change, and admits that he never thought he would have the chance to test this knowledge himself as Pernida and two full clones of it stand before him.

When Mayuri unsheathes his Zanpakutō and prepares to activate his Bankai, Yumichika has Ikkaku move Kenpachi away because he believes Mayuri is planning to poison Pernida, but Mayuri claims this would be a waste and that he is merely using the data he has collected so far before unleashing Konjiki Ashisogi Jizō: Makai Fukuin Shōtai, a modified version of his Bankai. Mayuri explains how this modified Bankai can create a modified Konjiki Ashisogi Jizō using the information he gives it as a Konjiki Ashisogi Jizō bursts out of the Bankai and falls to the ground, where it begins screaming as Mayuri reveals that this Konjiki Ashisogi Jizō has nerves on the surface of its body.

Pernida attempts to use The Compulsory on the Konjiki Ashisogi Jizō, but the baby's skin merely peels away, prompting Mayuri to explain how it cannot be controlled because its nerves are divided into 70000 layers, each of which will simply peel away if infiltrated by Pernida's nerves. As Mayuri taunts Pernida to take control of the Konjiki Ashisogi Jizō by infiltrating all 70000 layers in time, the Konjiki Ashisogi Jizō proceeds to devour Pernida and its clones as Nemu watches from afar. Laughing maniacally, Mayuri asks the Konjiki Ashisogi Jizō how its stomach feels and notes that it will probably take some time for Pernida and its clones to be digested before stating that creating the Konjiki Ashisogi Jizō without teeth prevented Pernida from cloning itself further.

However, Mayuri is surprised when the Konjiki Ashisogi Jizō is torn apart from the inside out. Leaping back, Mayuri narrowly dodges a large Heilig Pfeil, which destroys a tower in the distance as Pernida laughs before asking Mayuri if it imitated his laugh well. With a large Heilig Bogen between its fingers, Pernida claims that Mayuri forgot it was a Quincy, but Mayuri simply states that he never thought the left arm of the Soul King would do something as embarrassing as declaring itself a Quincy. Regenerating its fingers, Pernida asks why this would be embarrassing and claims it has always been a Quincy before noting that Mayuri's insults are annoying.

Mayuri notes that Pernida spoke more eloquently for a few seconds and realizes that its vocabulary has been growing since the beginning of their fight. As Mayuri wonders if it is regaining its memories as the Soul King or is instead evolving for an unknown reason, Pernida forms a Heilig Bogen above each of its fingertips before firing multiple Heilig Pfeil at Mayuri, who dodges them while seeing that Pernida's nerves are connected to them. When the nerves connected to a passing Heilig Pfeil infiltrate his left arm, Mayuri blows it off with a small explosion in order to protect himself, but the nerves on the ground bend the Heilig Pfeil and turn it around to send it back at Mayuri.

Seeing the Heilig Pfeil coming toward him, Mayuri notes that he cannot avoid it, but Nemu suddenly appears and grabs the arrow before cutting her right arm off, prompting Mayuri to grab her by the head before she can touch the ground and move them to a safe location. After throwing Nemu against a wall, Mayuri reprimands her for acting without orders because she could have died, but Nemu states that she believed he needed protection. When Mayuri notes that he did not teach her to fight based on her own judgement, Nemu confirms this, prompting Mayuri to claim that it would be too hard to raise the next Nemu like her before telling her to not die unless ordered to do so.