Reapers face the Soul Reaper captain's personal army of revived Arrancar. Once Bambietta is defeated by Charlotte Chuhlhourne, Giselle reveals that he used his ability to place Hitsugaya, Rangiku, Rose, and Kensei under his control. However, after studying Giselle's power, Mayuri devised a serum to alter the blood in zombified Soul Reapers and make them into his own personal servants before having Kensei stab him. He is shown to have survived the ordeal by drinking Bambietta's blood and has his power extracted by Yhwach's Auswählen. Hurt by Yhwach's betrayal, Giselle joins forces with Bazz-B to ally themselves with the Soul Reapers in entering the Royal Realm to kill their former master. Though he and Liltotto reach Yhwach, they were overpowered and defeated. Σ: Shaz Domino is Sternritter assigned with the Greek letter Sigma, whose ability to absorb surrounding Reishi with his regenerative power renders him virtually unable to be killed. Shaz was originally one of Gremmy's imagined constructs before he used Sigma, previously known as , to give himself a true body and freedom from Gremmy's influence. Following Head Captain Yamamoto's death, Shaz stands among the ruins of the SRDI, having already killed a number of scientists and thrown three knives into Akon's back, just as the latter manages to free Ichigo Kurosaki from the Garganta. Spotting Ichigo, whom he does not recognize, Shaz introduces himself as one of the Sternritters and ends up being attacked while attempting explain his special ability. As revealed in the "Beginning of the Revive of Tomorrow" side story in the 13 Blades fanbook, after escaping the Soul Society, Shaz participated in the Wandenreich's second invasion of the Seireitei with the intention to learn the method of creating his own Hōgyoku before being ultimately defeated by Izuru Kira. Supporting characters Soul Reapers Soul Reapers are the protectors of souls, granting them access to Soul Society and keeping them safe from hollows. Many of the protagonists introduced in the series are Soul Reapers, either in profession, origin, or abilities. Each Soul Reaper possesses a zanpakutō, a sword that doubles as both a weapon and a physical manifestation of the owner's soul. Each zanpakutō has its own personality, which is at times at odds with its owner's. Though Soul Reapers make up the bulk of the characters from Soul Society that have been introduced in the series, a far greater number of souls occupy its outskirts. Byakuya