Berenice Gabrielli is a Quincy and a member of the Vandenreich's Stern Ritter, designated as "Q".
During the initial stages of the invasion, Berenice was one of three Stern Ritter who confronted Captain Kenpachi Zaraki. However, according to Zaraki's account, despite her lengthy explanations about her abilities, which she delivered while his ears were still ringing from Jerome Guizbatt's roars, Berenice never got the chance to use them. Her throat was slit open as she spoke.
Zaraki later carried Berenice's corpse on his shoulders, along with the others, before dropping it unceremoniously in front of Juhabach.
Though her ability was never seen in action, Zaraki mentioned that Berenice claimed it would make him question everything about himself. The exact nature and effects of her ability remain unknown.
(Source: Bleach Wiki)










