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.
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Ding!
[Brontes] is undergoing a forced {Crystallization}!]
[Due to the large quantities of Divine Spiritual Energy in the air, Ethereal beings such as Spirits will undergone forceful {Crystallization} to compress their energy and survive in this world without exploding from over absorption of spiritual energy.]
So that's what happening? But she looks too much in pain! Also, didn't she ultimately evolved into a half-spirit through gaining a divine flesh body?
"Brontes! Should I bring you inside the Divine Realm?!" I asked desperately.
"Haha, calm down. Urgh…" Brontes laughed a bit at our reactions. "I'm fine."
She quickly stood up and started breathing calmly, the crystallization over her body suddenly stopped, and the crystals growing over her skin like cancerous growths were absorbed into her flesh and bones instead.
FLAAASH!
Check "The Protagonist's Sister Is Actually the Strongest"!