Bai Xiaotian walked out of the stone house of the mirror monster next to him, noticed Shen Luo's actions, and immediately walked over.
He soon noticed the strangeness of the spiritual energy here, but unfortunately he had no sharp objects in his hands, so he had to help Shen Luo and transport the chopped stones outside.
Relying on the unparalleled sharpness of the Demon-Slaying Sword, Shen Luo quickly dug a passage more than ten feet deep on the stone wall.
The deeper one goes into the stone wall, the richer the spiritual energy that seeps out from it. Shen Luo suddenly realizes that this is the reason why the spiritual energy of heaven and earth in this underwater cave is so rich.
After the stone wall was dug to this point, the rock ahead became harder and harder. Fortunately, he had the Demon-Slaying Sword, otherwise it would be impossible to move forward.
Shen Luo swung his sword vigorously to break the rock and moved forward several feet. The rock in front suddenly disappeared and a white light curtain suddenly appeared in front.
"Hey, what is this?" Shen Luo widened his eyes.
Runes shaped like earthworms flashed on the light curtain, which looked extremely mysterious. There seemed to be another world behind the light curtain, but he could not see anything even with all his eyesight.
"It seems that the spiritual energy of this underwater cave comes from inside the light curtain. What is this place? Is it some secret realm?" Shen Luo's eyes wandered over the white light curtain, thoughts turning in his mind.
"This aura? The place behind this light curtain is extraordinary! Fellow Daoist Shen, let me try using the Yuan-devouring Gu." In the Tiance space, Yuan Qiu also sensed the aura of the white light curtain. He showed excitement and waved his sleeves.
Upon hearing this, Shen Luo made a gesture and pointed forward. After a golden light flashed at his fingertips, a gray cloud appeared out of thin air. Countless gray insects surged inside it, pounced on the white light curtain, and turned into wisps of gray gas that penetrated into the white light curtain.
But just like when the lotus restriction was broken in Chaoyin Cave, all the Yuan-devouring Gu poured into the light curtain, and the light of the white restriction only dimmed a little.
If one wants to use this Gu to break the restriction, one will need at least ten times as many Gu insects as the one in front of him, and it will take several months to erode and break through it.
Normally, this time is not unacceptable, but Shen Luo cannot wait that long.
"No need to go through so much trouble. I'll try using this Demon-Slaying Sword." Shen Luo said calmly, using his magic power to inject it into the Demon-Slaying Sword.
However, this time he did not practice the nameless martial arts, but the Pure Yang Sword Technique.
This demon-slaying sword contains unparalleled pure yang power, which is more compatible with the Pure Yang Sword Technique.
As he injected his magic power, the golden light on the Demon-Slaying Sword became brighter and hotter, and a sharp and powerful sword energy suddenly emerged, causing the nearby void to tremble.
However, Shen Luo's intuition told him that this level of sword energy was not enough to break the white restriction in front of him, so he continued to practice the Pure Yang Sword Technique and inject mana into the Demon-Slaying Sword.
After a few breaths, a cracking sound came from the Demon-Slaying Sword, as if it had broken some boundary.
The golden light on the Demon-Slaying Sword suddenly became ten times brighter, shining brilliantly!
The red marks on the sword suddenly disintegrated and disappeared completely. The whole sword became pure and bright, as if it was condensed from golden light, without a single flaw.
A huge and unparalleled pure yang force suddenly burst out from the sword, forcing away all the nearby sea water. Because the cave was located at the bottom of the sea, the cold and yin energy that existed in it was completely evaporated, and it was filled everywhere with warmth like the rising sun.