Shelter, new recruit training ground.
Hubert looked at the elves and the bunker residents, paused for a moment, then continued speaking.
"The Ark is piloted by sentient beings, but unlike others, our Shelter is still connected to our mother world.
If Earth is destroyed, our Shelter will become a drifting Ark like the others.
And there are the Wandering Islands, which come in two types.
The first type is like a huge fragment inhabited by zombies led by a Lord.
The second type is the so-called port.
This is an occupied fragment, fixed in one position, never leaving its coordinates.
Unlike ordinary fragments and Arks, islands and ports cannot be merged.
This is all because of this crystal..."
Hubert displayed a slide of a crystal.
The Unification Device was initially black, then turned white when they first attempted to purify an island.
Once the island is completely purified, the crystal becomes completely colorless.
