Bonnie

Bonnie (affectionately referred to as Bonnie-chan) is a pet boar owned by Ganju Shiba. She was found by Ganju's brother Kaien in a mountainous area of Rukongai, when she was a piglet. She was injured at the time and was looked after by Kaien. Bonnie's ribbon was given to her by Kaien. Bonnie was very fond of Kaien and she is still not as emotionally attached to Ganju as she was to his brother.

Bonnie is tattooed with kanji lettering on its side, which roughly translates to "four-wheeled drive." At one point, it is implied that Bonnie was accidentally cooked into a stew by Retsu Unohana during a friendly cookout including her, Ganju, and a few others from the 4th Division. However, Bonnie is shown alive and well later.