Hanaka Busujima (毒島華花, Busujima Hanaka
) is a mysterious person who is always shown masked until "Buso Renkin After." Busujima cares deeply about Hiwatari and worries about him. In "Buso Renkin After," she is revealed as an extremely shy girl, who wore her Buso Renkin mask because of her shyness. She can guess the oxygen density accurately, which she tells to help Hiwatari. In the anime, she is part of the Victor Search Team sent to find and kill Victor, but they are easily defeated. They only escaped when Busujima releases a cloud of smoke, giving time for Chitose to teleport the others out.
She uses Kakugane XXXIX, which manifests as the Buso Renkin Aerial Operator
, a gas mask capable of mixing all gas type elements into poisonous or explosive mixtures. It is also capable of flying, viewing distant objects, night vision, magnification, and filtering. Voiced by:
Sayuri Yahagi (Japanese), Stephanie Sheh (English)