In this world where everything had been devoured and destroyed, where all light had vanished and everything was dim and obscure, on the verge of falling into extinction.
Deep within the void that had been almost completely swallowed by darkness, Diancie cradled the flickering core, becoming the sole source of light in this world.
At first, that light was as faint as a guttering candle in the wind, able to illuminate only the small space around Diancie.
Endless darkness surged in from every direction. It was Necrozma's frenzied will gone out of control, crashing relentlessly against that tiny halo of light like towering waves.
Diancie felt unprecedented pressure.
Every inch of darkness carried the desire to devour everything, trying to drag it into endless madness.
Its consciousness swayed constantly beneath the frenzied assaults, like a lone boat in a storm.
But it did not retreat.
Diancie hugged the core tightly, feeling the warmth brought by the remaining sanity of the Radiant God within.
That warmth became its anchor in the darkness, allowing it to remain lucid amid the mad tides.
It also served as a key, allowing it to draw upon the vast source of light within the core—the laws and Authorities that made up the entire Ultra World—and use them to continuously fill the Authority Shell within itself.
It was from that moment onward.
That tiny patch of light began spreading outward at an almost imperceptible pace.
On the first day, the light could barely maintain a radius of several meters.
By the first month, the light could already cover an area the size of a small floating island.
Diancie learned how to use Radiant Power more efficiently, resisting the fiercest impacts of Necrozma's frenzied will crashing in from all directions.
But inevitably, Diancie's consciousness began to feel exhausted.