Inside the Deep Sea Monster Fish.
The Ghost Girl, Zi Di, was cultivating.
She held a Soul Crystal in each hand, continuously drawing power from them.
The Soul Crystals appeared as long, black bars, but in essence, they were the quintessence of the soul.
Undead Mages used Undead Magic to slaughter beings from various races, extracting their souls, crushing, pressing, and refining them, finally producing Soul Crystals of various sizes and qualities.
Relying on the two Soul Crystals in her hands, Zi Di was making rapid spiritual progress at a visibly quick rate. As her soul's essence deepened, her mental strength rose steadily as well.
Soon after, the Soul Crystals in Zi Di's hands had completely dissipated.
Zi Di looked at the tiny fragments of Soul Crystal in her hands with regret, feeling sentimental.
"Soul Crystals are really so useful! It's just a pity there aren't many."
"In fact, for Cang Xu to be able to purchase them, his luck is already quite good."
