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is a Japanese light novel series written by Ryuji Matsuki, with illustrations by Osamu Otani. The series began publication on July 10, 2005 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
The Demon King and the Demon King Army were sealed in a magical book called "Systems" 300 years ago. Munhii, a girl with the ability to summon her mighty power, is called a "type leader." She had just graduated from military school and was to join a secret plan to bring a hero to her, and she was on her mission. However, I wonder if she was assigned to the "Fake Demon King Army", who is the hero's army. Moreover, the members of the unit are all those who are likely to have a habit and a lid.