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"Vetting"? [For some reason her question amuses him and Shinju's just managed to grab one of the tassels on the hat and is trying to pull down closer to her.]
They are dangerous, destructive, and legend says that they exist only because their true form was so powerful that even the greatest human alive knew one creature with such destructive force could not be left to roam the Earth, continuing to plague mankind. It is said he split the beast into nine to protect the world. If no different that leaving nine bombs wandering the Earth until the time they detonate.