Bleach Volume 55

The Soul Society begins to notice that a large number of Hollows in the World of the living has been exterminated and that people in the Rukon have been disappearing. Meanwhile, while helping Karakura Town's new residential Soul Reaper, Ichigo encounters a strange arrancar named Ebern Asguiaro who attempts to steal Ichigo's Bankai before escaping. At the same time, Head Captain Yamamoto encounters a group of masked men who are of the Wandenreich and have come to tell him that the Soul Society will be destroyed in five days. The group also reveal to have fatally wounded the Head Captain's lieutenant Chōjirō Sasakibe who later died of his wounds. Asguiaro and the leader of the masked figures, another arrancar named Luders Friegen, are killed by Wandenreich's leader. As a funeral is held for Chōjirō, Ichigo encounters Nel and Pesche who reveal that Hueco Mundo, having been ruled by Harribel since Aizen's defeat, has been taken over by the Wandereich with many arrancars including Dondochakka captured. Ichigo arrives to Hueco Mundo with Chad, Orihime, and Kisuke as they find Wandenreich's Quilge Opie fighting Harribel's Fracciónes, now known as the Tres Bestias. At the Soul Society, Mayuri confesses to having had the missing Rukon residents murdered to maintain the balance of soul and that the hollows' destruction is caused by Wandenreich, revealed to be Quincies whose leader is someone Yamamoto failed to kill. Meanwhile, informed on Ichigo being in Hueco Mundo, the Wandenreich's leader declares an assault on the Seireitei.Addign

The Blood Warfare
Contains chapters 480 - 489.