|Military Branch||Stern Ritter|
|Base of Operations||Vandenreich HQ|
|Spirit Weapon||Reishi Sword|
Thousand-Year Blood WarEdit
First Assault on Soul SocietyEdit
Bambietta participates in the assault on Soul Society with her fellow Stern Ritter and her leader, Yhwach. During the battle, she kills several lower-echelon Shinigami, taking great delight in doing so. She also manages to steal Sajin Komamura's Bankai. After retreating, Bambietta and her comrades are shocked to find their headquarters has been destroyed by Ben Tennyson. Bambietta demands to know what happened, and becomes enraged upon learning whom is responsible.
Bambietta is next seen helping her comrades rebuild their headquarters, loudly complaining about it and cursing Ben, as she believes that the Vandenreich should be relaxing before its next battle with the Gotei 13. Cang Du scolds her for this, and she glares at him.
Eon then shows up, offering to provide the Vandenreich with vital information about Ben and his alien forms. Though suspicious, they accept the offer. Like her fellow Quincies, Bambietta is shocked to learn of Alien X's power, but she quickly laughs and calls the form useless when Eon reveals the form's weakness, only to be silenced by a vicious grin from the dimension-traveling criminal and told that the benefits of being able to use such a form outway the weaknesses.