Greetings Sisters, I Am Your Younger Brother Lei Xiao

East Sea, Three Immortal Isles.

The heavenly tribulation gradually drew to a close, the tribulation clouds dispersed, and the spiritual light filling the sky slowly receded.

Three graceful figures with peerless countenances stepped out from the rosy clouds.

Yun Xiao was cold and dignified, her temperament serene; Qiong Xiao was bright and spirited, lively and vivacious; Bi Xiao was dainty and naive, pure and innocent.

The three sisters looked at each other, just about to rejoice, when their minds were simultaneously shaken.

Where the rosy clouds had dissipated, apart from the three of them, a young man had appeared out of thin air.

The youth had a tall, straight frame, wore a Daoist robe patterned with dark purple lightning, and faint lightning markings flowed between his brows. His features were refined, and his temperament was steady.

"Who are you?"

Bi Xiao looked at Lei Xiao, asking with a face full of confusion.

Yun Xiao and Qiong Xiao also looked Lei Xiao up and down. Today, the three sisters had taken human form simultaneously, but after the transformation, there was inexplicably one more person.

One had to know that the Three Immortal Isles were protected by an Innate Great Array. Now that the Innate Great Array was intact, logically speaking, it was impossible for outsiders to break in. Furthermore, given Lei Xiao's cultivation, it was impossible for him to have breached the Innate Great Array.

"Who am I?"

Lei Xiao was first bewildered, then in the next instant, countless memories flooded into his mind.

These memories came from his life on Blue Star in the future, as well as the inherited memories of the Purple Firmament Origin Divine Thunder. After these memories manifested, Lei Xiao instantly understood his situation.

He had actually transmigrated, transmigrated into the Primordial World of myths and legends.

"Greetings sisters, I am your younger brother, Lei Xiao." Lei Xiao said, bowing to the Three Xiao.

He had accidentally borrowed the power of the Three Xiao to successfully take human form, and his fate was partially connected to theirs. While calling himself the younger brother of the Three Xiao was a bit of a stretch, it was not entirely incorrect.

Lei Xiao's current thought was to cling tightly to the Three Xiao's thighs. After his transformation, he was only at the early stage of the Mystic Immortal realm, and he was the type who possessed cultivation but no substance.

The Primordial World was incredibly dangerous. If he didn't find a backer for himself, he might die from a moment of carelessness.

"Younger brother?"

Bi Xiao looked at Yun Xiao with a confused face and said, "Eldest sister, is he really our younger brother?"

Rumble--

Before Yun Xiao could speak, the entire Three Immortal Isles began to shake violently.

"What is going on? Didn't the transformation tribulation already end?" Qiong Xiao's expression changed.

"It is not the tribulation; someone is attacking the Innate Great Array of the Three Immortal Isles." Yun Xiao moved her gaze away from Lei Xiao and looked outside the island, her expression grave.

"Attacking the Innate Great Array? Why would they attack the Innate Great Array?" Bi Xiao asked in confusion.

Looking at Bi Xiao, who resembled a curious baby, Lei Xiao shook his head slightly and explained:

"It should be that our recent tribulation and transformation let outsiders know that there is an Innate Great Array here. Innate Great Arrays are generally born to protect Innate Spiritual Treasures. They likely assume there are Innate Spiritual Treasures within the Three Immortal Isles, which is why they are attacking the array."

"Someone wants to snatch our treasures?"

Bi Xiao widened her eyes, her small face puffing up: "But we don't have any Innate Spiritual Treasures!"

Before her voice had even faded, a heaven-shaking boom came from outside the island.

The entire Three Immortal Isles shook violently. On the light screen of the Innate Great Array floating around the island, a visible crack appeared. Looking through the gap, a dense crowd of figures stood above the East Sea.

Leading them were three individuals with powerful auras.

The one in the middle wore dark-colored scale armor, had a broad back and a thick waist, and a pair of coral-like horns atop his head. A bloody, malevolent aura surged around him like ink.

Standing on his left and right were two others. One wore a green robe, had a sinister face, and held a black long banner; the other had a gaunt frame, deep-set eye sockets, and his hands were hidden in his sleeves, yet faint cold light flickered from them.

The horned man's gaze pierced through the gap in the array to look at the four people, his voice like thunder, causing the waves on the sea to churn, "Hand over the Innate Spiritual Treasures in the island, and this lord will spare your lives! Otherwise..."

A pitch-black giant hammer appeared out of thin air in his hand, and he smashed it downward.

"Boom--!"

With an earth-shattering roar, the light screen of the Innate Great Array outside the Three Immortal Isles trembled violently. The originally pale-gold light shield was instantly smashed into a depression, and countless cracks spread like a spiderweb.

"Oh no--"

Seeing this, the Three Xiao immediately attacked at the same time. The magic power within their bodies surged wildly, pouring into the core of the Innate Great Array. The originally crumbling pale-gold light screen suddenly lit up, and countless complex runes flowed across it, forcibly halting the spread of the cracks.

The force of the horned man's hammer was completely neutralized by this seemingly thin light shield, leaving only ripples spreading across the sea surface.

"Eh?"

A trace of surprise flashed in the horned man's eyes, immediately followed by even more intense greed. "To be at the early stage of the Taiyi Golden Immortal realm just after taking human form—it seems your innate origins are all very strong. If I devour the innate origins of the three of you, my cultivation will surely advance further.

Second brother, third brother, don't hold back. Let's attack together and break this turtle shell!"

"Understood!"

The green-robed man and the gaunt old man replied in unison. Three powerful auras erupted simultaneously, pressing down on the Three Immortal Isles like three great mountains.

The green-robed man threw the black long banner in his hand into the air. In an instant, sinister winds howled, and countless black threads surged from the banner, coiling around the light screen of the Innate Great Array like venomous snakes.

The moment each thread touched the light screen, it emitted a harsh "hissing" sound, actually corroding the innate runes of the array.

The gaunt old man no longer held back either, thrusting out his hands from his sleeves—they were not hands at all, but two crystal-clear bone blades. The blades shimmered with a cold, ghostly blue light. As he slashed down, the cold air condensed into solid ice blades, alternating with the horned man's giant hammer to strike the same point on the array.

The Three Immortal Isles shook violently, rocks tumbling down the mountains and spiritual springs flowing in reverse.

Yun Xiao and her sisters turned pale, yet they stood firmly at the eye of the formation, pouring their mana into the Innate Great Array without pause.

They have only just finished their tribulation and have yet to recover; if they keep draining themselves like this, they will surely be defeated.

Lei Xiao's gaze swept over the Three Xiao, his brows knitted tight.

Judging by the conversation just now, the three people outside were no saints. Once they broke through the Innate Great Array, they would certainly dispose of a small fry like him without a second thought.

It seems I have no choice but to use the Purple Firmament Origin Divine Thunder within me. Though I will suffer the backlash, there is no other way. A flash of resolve crossed Lei Xiao's eyes.

As the thought took hold, the thunder mark between his brows seemed to come alive, rising and falling as if breathing. Each pulse drew upon the slumbering mass of Purple Firmament Origin Divine Thunder deep within his body.

The process was slower and more arduous than Lei Xiao had imagined.

Time ticked by, second by second, until a quarter of an hour had passed in the blink of an eye.

Outside.

"Big Brother, the defensive power of this Innate Great Array is too strong. I fear we cannot break it in a short time, and if we continue like this, we might attract other experts," the gaunt old man said.

The burly man with horns did not look pleased at these words. Although his cultivation as a late-stage Taiyi Golden Immortal made him nearly the strongest within a million-mile radius, there were plenty of others stronger than him beyond that range.

"Everyone, attack together! I refuse to believe this Innate Great Array has no weak points. Once we find a flaw, we will concentrate all our attacks there," the burly man with horns commanded.

"Understood!"