She quickly composed herself and performed a respectful bow toward Electrolux's spectral figure, her voice soft but full of sincerity.
"Elder Yi, I've troubled you. Thank you for being willing to help me."
Seeing how polite and pure-hearted Nana was, the smile in Electrolux's eyes deepened a bit more.
His gaze toward Nana also became a bit gentler as he said softly, "No need for such formalities."
"Just close your eyes, relax your body and mind completely, and do not resist the external power. Carefully feel the changes in your Spirit; leave the rest to me."
Nana nodded heavily and, as instructed, slowly closed her eyes, concentrating all her focus on her Ghost Martial Soul.
She relaxed her body entirely, casting aside all stray thoughts, simply waiting for Electrolux to act.
Seeing this, Electrolux spoke no more. He slowly raised his right hand, and a Necromantic Staff, grayish-white and engraved with complex undead patterns, quietly appeared in his hand.
Holding the Necromantic Staff, he pointed it gently toward Nana and began to chant an ancient and obscure incantation.
The syllables of the incantation were low and distant, not belonging to any common language of this World.
Xu Tianhao stood to the side, listening carefully, but he still couldn't understand a single word.
He only felt that the incantation contained a profound power that pulled at the surrounding energy of heaven and earth, causing even the air to tremble slightly.
As Electrolux chanted, a strange phenomenon occurred instantly.
On the ground where Nana sat cross-legged, a grayish-white necromantic hexagram formation formed in an instant, centered on her.
The formation was densely engraved with necromantic runes which, as they flowed, emitted a heavy and mysterious undead Aura.
As the chanting continued, the light of the Necromantic Formation grew more brilliant, and a grayish-white halo continued to rise.
Next, Nana's body, which had been sitting cross-legged, was actually lifted by the power of the formation. She floated slowly, about half a meter off the ground, her entire body firmly wrapped in the formation's power.
The originally blurry Ghost Martial Soul behind her also slowly unfurled as her body floated.
As if awakened by a hidden power, it began to become clear bit by bit.
In just a few moments, a dense grayish-white light completely enveloped Nana's figure, forming a giant cocoon of light.
Within the cocoon, the silhouette of Nana merging with her Ghost Martial Soul could be vaguely seen.
Then, from within the cocoon, a soft groan of extreme pleasure escaped Nana's lips.
It was the comfort of the Spirit being nourished and its potential being stimulated—there was no pain at all, only total relaxation and transformation.
Hearing this sound, Xu Tianhao's expression remained calm. He did not look away, maintaining the operation of the Sun and Moon Under the Same Sky Domain.
He distributed the Domain's power evenly between Meng Hongchen and Nana, ensuring both received the dual support of mental force and the Domain.
Time passed slowly, minute by minute. The surrounding Aura remained stable, and Meng Hongchen continued to focus on Body Refining amidst the alternating ice and fire.
Nana's Spirit evolution, however, was much faster than expected. The girl who had started her transformation later was actually the first to finish.
The moment Electrolux stopped his chanting, the Necromantic Formation beneath Nana slowly dissipated, its engraved runes fading back into the ground.
Subsequently, the grayish-white cocoon of light also slowly receded, and the radiance vanished.
Nana's slender and graceful figure slowly emerged, floating gently down from mid-air to land steadily on the ground.
At this moment, Nana's outward appearance hadn't changed much. She still had long, bright black hair falling naturally over her shoulders, fair skin, and delicate features.
However, the temperament surrounding her had undergone a World-shaking change; she no longer had that slightly ethereal and timid feel from before.
Instead, she had gained a touch of cold elegance and majesty, possessing a naturally intimidating Aura.
And the Ghost Martial Soul behind her had undergone an even more earth-shattering transformation, one that could be called a complete rebirth.
The original Ghost Martial Soul was nothing more than a blurry shadow similar in size to Nana.
Its outline was hazy and its Aura weak; aside from the stealth characteristics of a ghost, it lacked any strong sense of pressure.
But now, the Spirit had completely transformed, turning into a three-meter-tall phantom of a Dark Queen standing behind Nana, its Aura magnificent.
This Dark Queen phantom no longer had any sense of blurriness. Her face was exactly the same as Nana's, exquisitely beautiful and cold.
Her eyes carried the majesty of a Nether Dominator, her ink-black hair flew wildly, and her entire body was entwined with a dense undead Aura and pure darkness.
The two Auras intertwined to form a heavy halo of energy suspended behind her head.
The pressure it emitted was incredibly thick, not losing at all to the sacred pressure brought by Ye Guyi's Sacred Angel Martial Soul, and perhaps even surpassing it.
Nana slowly opened her eyes, a flash of dark light passing through them.
She gently raised her hand, and the Dark Queen phantom behind her seemed to share her mind, slowly merging with her body to instantly complete the Spirit possession!
In the next moment, Nana's roughly 1.7-meter-tall graceful figure quietly changed.
Wrapped in darkness and necromantic power, her stature instantly shot up, and armor condensed around her body.
A pair of Nether Twin Swords quietly appeared in her hands, the blades gleaming with a cold, dark light and engraved with nether patterns.
She had completely transformed into a Dark Queen wielding Nether Twin Swords.
Her temperament was coldly elegant beyond compare, and her Aura was magnificent and intimidating. In both temperament and Aura, she far surpassed her pre-evolution self; she was like a different person.
A brand-new sense of power filled her entire body. Nana could clearly feel that her Spirit had not only completed a morphological transformation, but its power, characteristics, and potential had all been upgraded across the board.
This was her brand-new Spirit, a transformation forged for her by Electrolux's own hands.
Looking at Nana's current appearance, a hint of approval flashed in Xu Tianhao's eyes.
Spirit Evolution — Nether Spirit Master!
Nether Spirit Master: Controller of life, death, and Reincarnation; detainer of thousands of ghosts; vessel of the True Spirit of the Underworld; the Lord of the Nether!
The Nether Spirit Master controls nether power and the Profound Truth of Undeath.
From this point on, Nana's Ghost Martial Soul had completely shed its mediocrity to become a top-tier Undead-Darkness type Spirit.
Her future path of growth would be smooth and unobstructed!
After the excitement passed, the halo of the Nether Spirit Master surrounding Nana also faded.
She withdrew her Spirit, feeling an unprecedentedly powerful force, the excitement and agitation in her eyes not fading for a long time.
Coming back to her senses, Nana walked quickly to Electrolux, straightened her posture, and bowed deeply in an extremely solemn salute.
Her voice was full of sincere gratitude: "Thank you for your help, Elder Yi. Nana will always remember the kindness of helping my Spirit transform; I will not dare to forget it in this lifetime."
Her tone was incredibly earnest, and her eyes were filled with respect.
Electrolux's assistance had allowed her Spirit to achieve a qualitative leap. This kindness was far more precious than any treasure.
Looking at the well-behaved and sensible girl before him, a gentle smile appeared on Electrolux's face.
His voice was indifferent yet carried a hint of warmth: "There is no need for such formality. You are Tianhao's companion; lending you a hand was simply following his wishes."
"You only need to improve your own strength and walk alongside him in the future; that will be enough."
His decision to help was partly out of consideration for Xu Tianhao, and partly because he appreciated Nana's character.
Furthermore, as someone who had seen much, how could he not see Nana's feelings for Xu Tianhao?
As a teacher, it was only natural to give things a little nudge.