Last Order (打ち止め) Toaru Majutsu no Index A Certain Magical Index とある魔術の禁書目録 Misaka clone No. 20001, she is the administrator of the Misaka Network and the fail-safe mechanism in case the Sisters got out of control. She is not designed to function independently and survive for long outside a culture container, and appears to be only about ten years old. Unlike her previous clone sisters, she is capable of showing emotions and has a close relationship with her adult mentors, Misaka Worst and Accelerator.