After these events, a group of Quincy called the Wandenreich to appear and send their invading force of Sternritter to take over Soul Society. Zaraki manages to single-handedly kill Berenice Gabrielli, Jerome Quizbatt, and Loyd Lloyd without much difficulty. Zaraki then confronts Yhwach, revealed to be Loyd's twin brother Royd Lloyd in disguise, and is defeated. After the Wandenreich leaves, Zaraki recovers and engages Unohana in what both expect to be a fight to the death, in order to train him in dealing with the Wandenreich. Despite being brought to the brink of death several times, and captain Unohana finally releasing her Bankai, Zaraki ultimately cuts down Unohana, subsequently hearing his "Zanpakutō" and learning its name: . During the Wandenreich's second invasion, Zaraki uses Nozarashi's ax-like Shikai form against the Sternritter Gremmy Thoumeaux in an exhausting flight that leaves at the mercy of a quartet of female Sternritters before Ichigo saves him. After being healed twice, the second time being a consequence of being incapacitated while fighting Pernida, Zaraki joins Hitsugaya and Byakuya against Gerard. During the fight, as Yachiru reveals her true identity and sacrifices herself to awaken his full power, Zaraki manifests his "Zanpakutō"'s Bankai form to overwhelm the Sternritter before his body begins to suffer from the strain caused by using the Bankai. He later helps in holding down Gerard for Hitsugaya and Byakuya to land the death blow. Ten years after the war, having become more composed with Ikkaku as his new vice-captain, Zaraki is last seen getting himself lost while attempting to attend Rukia's captain ceremony.