Hinata's Knife is Hikage's last keepsake of her mentor and friend Hinata, who was the leader of her gang and acted as a parental figure to her. Hikage kept it as a memento of her departed leader after she found her dead in an alleyway, holding it dearly as if it still bore her soul.
Hinata's Knife has a brown handle with a black trim around it, passing though where the blade is. It has several notches wear it detaches itself.
Along with being able to flip itself open, its also is extendable as it has a metal wire holding the blade together, allowing it to stab opponents at a considerable distance or used as a bladed whip.