Weapon, surgical knives
Heckel (ヘッケル Hekkeru) and Jackel (ジャッケル Jakkeru) are a pair of surgical knives used by Yukiko Hirohara and also her weapons of choice. They are almost double the size of normal knives and also much heavier, but their sharpness is a force to beckon with. They are usually kept hidden beside Yukiko's thighs. They were made by the Hirohara financial clique per her request, thus Yukiko treasured them like her partners.