The Great World Hall in Zebul was both Kariel's laboratory and an observatory that governed the workings of the world.
Thanks to a special function of the Mech System, the space had been erased, making it impossible to enter or even leave a trace while the security system was active.
As befitting a place with "Hall" in its name, it was vast enough to contain the Alpheas Magic School.
The overall color scheme was a mechanical navy blue, and the hemispherical ceiling sparkled with tens of thousands of electrical signals.
In the northwest, a hologram of a globular cluster slowly expanded.
At its center floated a massive steel sphere over 30 meters in diameter, with two rings rotating along its orbit.
Amy and her friends sat near the globular cluster, their wrists bound by steel handcuffs.
Ikasa, who had kidnapped the girls, had hoped for reinstatement as an angel but was sent back to the Second Heaven in Kariel's silence.
The only moment of joy for Amy and her friends since arriving here had been when Ikasa left.
Conversely, everything else had been terrible.
They hadn't expected a being of Kariel's stature to resort to handcuffs.