Imai Nobume

Imai Nobume (今井信女, Imai Nobume), formerly known as Mukuro (骸, Mukuro), is a former member of the assassination unit of the Mimawarigumi, as well as its former vice captain. She is the secondary antagonist of the Thorny Arc and is is the current director of the police department, succeeding her late boss Sasaki Isaburo.