Hiyori Sarugaki

Hiyori Sarugaki (猿柿 ひよ里, Sarugaki Hiyori) is a former lieutenant of the 12th Division under captains Kirio Hikifune and Kisuke Urahara. She viewed Hikifune as a mother figure, and thus initially refused to accept Urahara as her replacement. Hiyori is a tiny, blonde-haired girl with a fierce temper and violent tendencies. Hiyori often abuses Shinji Hirako, usually by slapping him with one of her sandals or using him as a human shield when necessary. This behavior dates back to her time as a lieutenant, despite the fact that Shinji outranked her then. Hiyori took the longest to defeat her inner hollow out of all the current Visoreds, at 69 minutes and 2 seconds. Hiyori's zanpakutō is standard in appearance with her tsuba decorated in small hearts. Her hollow mask looks like that of a normal hollow mask with a large horn and pink like stripes on the top, resembling a Rhinoceros horn. She is voiced by Reiko Takagi.

Source: Wikipedia