Ghost of the Old Dwarf:
The room behind me is... a storage where the energy of magic power is stored... that Beleth extracted... from the entire Hellbound... from the nature, it is Core Naia...
The nature spirits... originally belonged to... the air, earth, and living organisms... were locked in this place for a long time... and they mutated... as they tried to... recover their formations.
They kept their original elements... fire, water, wind, and earth... And they make their own movements...
But they share their experiences... when they sense danger... they become one huge unit... a powerful spiritual body...
The element of this spiritual body is... related to the type of danger each individual objects experienced... before they become one unit... even fairly good skills won't be able to defeat it...
Ask about the spiritual body