A black cylindrical self-defense tool made by Cheng Yiyang at Yang Xichen's request. It is two finger joints long with switch buttons labeled peace and charm. Pressing peace pops out a sharp small knife. Pressing charm launches an anesthetic flying needle, with three total launches possible plus three spare needles in the box. It has an anti-lost function with a black bead featuring a cloud pattern that allows removal and reattachment.
