Mischief Manager

Mischeif manager
A mischief manager is a type of protector who fronts to prevent mischief makers from causing serious harm to both the system and its surroundings. Not every system with a mischief maker has a mischief manager, but a mischief maker must be present for there to be an existing mischief manager.

This term was coined by Keiji Shinogi of the Hollow.