Giriko's Fullbring works by allowing him to set "timers," upon things and beings to which they are attached. These timers are linked to specific conditions that Giriko himself can set. But once the time period is established, however, not even Giriko himself can deactivate his Fullbring. If someone was brought out of the area before the prerequisite time period ends, then all people inside the area, and the area itself, would perish in the flames of time.