Senjumaru Shutara

Senjumaru has the appearance of a slender and youthful woman with fair skin and long, black hair that is adorned at the back by a large golden ornament in the shape of a crescent moon with numerous small lines radiating outwards.

Senjumaru wears the standard Shinigami shihakushō beneath a white long-sleeved haori, over which she dons a further white robe fastened at the front near the center of her chest. Her height makes her the shortest among other members of Zero Division, but she wears a pair of extremely thick-soled okobo. She has six long, golden skeletal artificial arms attached to her back that she uses in place of her physical hands.[4] Senjumaru is somewhat playful, providing a fanfare with several musical instruments upon the Royal Guards landing in Soul Society and taunting Mayuri Kurotsuchi. She is also focused on the mission they have been given, seeing it through while other Royal Guard members talk with each other and the Gotei 13.[5] She can be rather forceful as well, to the point of threatening, as she threatened to castrate Renji if he did not take off his fundoshi so she could fully measure his body for a new shihakushō.[6] When referring to herself, Senjumaru uses the archaic pronoun "warawa".[7] After the death of Captain-Commander Genryūsai Shigekuni Yamamoto, Senjumaru travels to Soul Society with the other members of the Royal Guard, where they are greeted by the surviving Gotei 13 captains and Ichigo Kurosaki.[8] As they emerge from the Tenchūren, she provides music for their procession by playing multiple instruments simultaneously.[9]

While the other members of the Zero Division discuss their plan to take Ichigo to the Royal Palace, Senjumaru leaves to retrieve Captain Byakuya Kuchiki, Lieutenant Renji Abarai, Lieutenant Rukia Kuchiki, and the broken Tensa Zangetsu. She carries them all back in large, translucent orbs, stating to those assembled that all of the ones on their list are present. She then points to Ichigo, stating that only he remains. Captain Retsu Unohana objects to her seriously injured patients being taken out of Seireitei, but is rebuffed by one of the other Royal Guard. Seeing Tensa Zangetsu, Captain Mayuri Kurotsuchi asks Senjumaru if she broke into his laboratory to obtain it. Surprised by Mayuri's presence, she denies breaking into the lab, stating that she simply placed her hands on its door and it opened by itself. She then claims that the lock was easier to open than the last time she was there.[10]

As the Royal Guards, the injured Shinigami, and Ichigo Kurosaki finally arrive at the Soul King Palace, they leave the Tenchūren. While Ichibē Hyōsube is conversing with Ichigo regarding both the Ōken and Sōsuke Aizen, Senjumaru joins in and starts speaking to Ichigo with the fact that Aizen himself was scheming of creating life, defeating the Soul King, and become a god himself. She continues by stating that while Sōsuke Aizen is unmistakably the "personification of evil", the Quincy of the Wandenreich are even more wicked than him.[11] After Renji and Rukia both fully recover, they eventually gather at her palace so she can take measurements of them. She forces them to strip down, and threatens to cut off Renji's "thing" if he doesn't willingly take off his fundoshi, causing Renji to reluctantly agree.[6] Later, Senjumaru helps Ichigo leave the Soul King Palace and travel to the Seireitei by manifesting a flight of spiral stairs for him to walk on.[12] The next day, when Yhwach, Jugram Haschwalth, and Uryu Ishida arrive at the palace, Senjumaru senses their presence.[13] After Yhwach passes Kirinji, Senjumaru confronts him with several soldiers, noting that it has been awhile. She scolds him for showing up without an invitation and wonders if he has gotten overconfident for defeating Yamamoto. She orders her soldiers to attack as Yhwach tries to pass her, but is shocked to see that they were unable to land a single blow before watching as Nianzol Weizol emerges from Yhwach's shadow.[14] When Nianzol explains how all attacks are useless because he can deflect any attack that he sees, Senjumaru surmises that he can only deflect attacks in his line of sight before having more of her guards appear from behind tapestries resembling the pillars and attack Nianzol from behind. However, Nianzol bends their swords and explains how he can deflect the attacks of anyone whose abilities he has seen before cutting the guards in half. Unfazed by this, Senjumaru points out how she never said that the guards were the only ones attacking before revealing that she has completely replaced Nianzol's outfit with one of her own design. When Nianzol states this is impossible, Senjumaru states that she does not have her name for no reason before warning Nianzol against taking it off before he dies as he is impaled by dozens of spikes from within.[15] As Nianzol falls to the ground, dead, Senjumaru remarks that forgetting to remove the needles from her work after tailoring it is her own bad habit. Stating that blades can now reach Yhwach, she looks on as he uses his shadow to summon forth Soldat to counter the Soul King's soldiers, as well as his elite force, the Schutzstaffel, to face the Royal Guard. When Gerard Valkyrie attacks her, she attempts to block it but her sewing needle is destroyed. She calls forth a massive soldier to assist her, but it is promptly disposed of by Pernida Parnkgjas. Lille Barro takes aim and shoots a large hole through her head using his Spirit Weapon.[16] Senjumaru's body crumples to the ground as large amounts of blood begin to pool from the large open wound in her head.[17] After Lille attacks the various constructs, seemingly causing their destruction, the landscape around him pulls back revealing elaborate cloth used to simulate the surroundings. Senjumaru appears alive and well and tells him that this was a fake Soul Palace created to welcome them, and that the real palace is hidden by Ichibē Hyōsube.[18]

Senjumaru briefly clashes with Uryū and incapacitates him.[19] After the Schutzstaffel and Haschwalth are respectively defeated by Ōetsu Nimaiya and Kirinji, they are revived by Yhwach's Auswählen.[19] Following her healing of Ōetsu after the latter is near-fatally shot by Lille, Senjumaru engages in combat with Gerard. Though initially having the upper hand, the Royal Guard are soon overpowered by the Quincy. As a last resort, Nimaiya, Kirinji, and Hikifune take their own lives in order to break the Blood Oath's Seal. Senjumaru explains that because each of the Royal Guards possesses vast amounts of Reiryoku, they can destabilize the balance of the three worlds if they unleash it all at once and thus have been forced to seal away their true power with their own lives. With the seal now broken, Senjumaru releases her Bankai, Shatatsu Karagara Shigarami no Tsuji, easily subduing the Schutzstaffel within.[20]

Soon afterward, Senjumaru is defeated by the Schutzstaffel.[21]