The name of Isshiki Kotonashi's weapon. A giant pair of scissors, capable of splitting into two separate blades. It can also transform to a limited extent (between various sword styles).
It's usage varies between the user's forms. Ishikoto probably has the most varied fighting style with it, using it like a pair of scissors, a single larger blade, or twin blades in each hand. Isshiki and Kotonashi, on the other hand, are stuck to using more conventional sword styles (in addition to using it as a focus for any magic they have, if any).