"Teacher, is this the Eternal Night World? It looks so gloomy!"
The Eternal Night World, Yu Chengsong looked at the gloomy thunderclouds ahead and the cracked earth. His usually steady face showed a hint of excitement.
Yu Chengsong's feelings towards Yu Zhibo were extremely complex, harboring both the filial affection of a child for his father and a touch of resentment. According to his understanding, his father was a good person, but precisely because he was too good, he had sacrificed his small family for the greater good of the Dragon Country. Five years ago, he had finally returned, but after a short stay, he left, even taking his mother with him.
It was important to note that before Yu Zhibo's return, although they were without a father, they still had a mother.
His second brother and third sister had cried in anger, and even he had teared up.
His purpose in coming to the Eternal Night World this time was not only to be with his father but also to ask him directly: why had he and his mother so cruelly abandoned the three siblings?
Beside him, Uchiha Madara had already changed into his battle armor. Hearing Yu Chengsong's words, he crossed his arms, sensing several terrifying auras lurking around. A smile appeared on his stern face. "The Eternal Night World is boundless. Finding your father might take a long time. This will be a great opportunity for training. We can search while we fight."
As he spoke, his figure flickered, and in the next instant, a terrifying explosion erupted dozens of miles away.
"Roar!"
A thousand-legged worm, lurking underground, let out a roar, splitting the earth and appearing before Yu Chengsong in a ferocious posture.
This thousand-legged worm was over three thousand zhang long. From the back, it resembled a blackened grub, its body covered in dense wrinkles and oozing disgusting mucus. Its underside had countless wriggling legs, coupled with a ferocious breath and thousands of compound eyes, making it exceptionally terrifying.
Its sensed level was a full 99, just one step away from S-class.
Accompanying the giant worm's sharp roars was Uchiha Madara's bloodthirsty laughter.
"Hahaha, as expected, this world is more interesting. Even a random opponent is level 99. Unlike Earth, where I have to be careful when fighting, afraid of shattering it. You vermin, die!"
Uchiha Madara unleashed a Great Fireball Jutsu, burning away the poisonous mucus sprayed by the thousand-legged worm. Then, energy intertwined around him, quickly forming a colossal Susanoo over ten thousand meters tall, standing tall in the dim Eternal Night World as he battled the giant worm.
To savor the thrill of combat, Uchiha Madara did not use the crushing power of laws but instead employed the most primitive fighting style. With every move, he shattered mountains and broke valleys, wielding his energy sword with great skill, like a deity.
Yu Chengsong's mouth twitched, and a few black lines couldn't help but form on his forehead.
He knew his battle-loving teacher wouldn't be so kind as to help him find his father. Coming to this world was merely an excuse to pursue exhilarating combat.
However, seeing the excited expression on his teacher's face, the words he had held back were swallowed again.
Never mind, his teacher had also refrained from fighting for a long time to protect him, so he should let him indulge himself.
Yu Chengsong quietly retracted his aura and used Wood Style to create a large bed, sitting cross-legged.
As Yu Chengsong was a native of Earth, he did not receive a sub-system like Uchiha Madara. However, Uchiha Madara treated him quite well, or perhaps the system deliberately went easy on him because he was Yu Zhibo's son.
Therefore, after entering A-class, his permissions were also upgraded to activate the Ninjutsu Sequence Core, and Uchiha Madara purchased many Kekkei Genkai for him through the sub-system.
Now, at only thirteen years old, he controlled a considerable number of ninjutsu.
He closed his eyes on the wooden bed, wanting to sense Yu Zhibo's location.
The father and son were connected by blood. After reaching A-class, their spiritual senses were inherently linked by karma. Furthermore, his Mangekyo Sharingan ability, Mirror Flower Water, could replicate a weakened version of his father.
He wanted to use these conditions to see if he could sense the direction of his father and mother through a hunch.
But the result disappointed him. His father seemed to be shrouded in an impenetrable mist, leaving him with no clues whatsoever.
As he sighed, the ground below suddenly trembled, and then the earth cracked open. A hundred-legged worm, at level seventy-odd, revealed itself, opening its mouth filled with sharp teeth, intending to swallow him.
"So annoying!"
Yu Chengsong narrowed his eyes and used the Body Flicker Technique to disappear from his original spot. The next moment, he was ten kilometers away.
The gap between law and non-law was like a chasm.
Yu Chengsong had not yet reached the law level. Theoretically, he couldn't contend with beings at the law level. However, this thousand-legged worm's laws were incomplete, which prevented it from completely stopping his escape.
"Roar!"
The thousand-legged worm was relentless, opening its massive mouth to spew endless black liquid, forming a large net to engulf him.
Simultaneously, the mucus was covered by a faint control-type law. Under the influence of this law, the void became as viscous as a swamp, affecting even his use of the Body Flicker Technique.
"Mangekyo Sharingan: Mirror Avatar!"
Yu Chengsong stood with his hands hanging down, his face unreadable. The tomoe in his eyes spun madly, finally transforming into the pattern of the Mangekyo Sharingan, and then endless pupil power surged forth.
Within that pupil power, there was also a trace of pupil power identical to Yu Zhibo's. This was a hidden hand Yu Zhibo had placed in Yu Chengsong's eyes, much like Uchiha Itachi's Amaterasu mechanism in Naruto that would automatically ignite when encountering Orochimaru.
However, unlike Itachi's setup, this pupil power was something Yu Chengsong could control automatically, and using a little meant less of it.
As the ability was activated.
The next second, a tall, slender young man, looking exactly like Yu Zhibo, appeared before Yu Chengsong. His eyes were indifferent, and he raised his right hand, palm open.
He uttered syllables devoid of any emotional fluctuation: "Universal Pull!"
"Boom!"
Under the terrifying repulsive force, the thousand-legged worm was blasted several kilometers away, letting out a shrill scream.
"I can only say that it's worthy of being a mirror avatar containing a trace of father's pupil power. It actually allowed me, who hasn't even reached the law level, to repel an enemy far superior to me!"
Yu Chengsong stared blankly at the back of Yu Zhibo's mirror avatar, pursing his lips.
"Sage Art: Wood Golem Technique!"
Under his gaze, the expressionless Yu Zhibo mirror avatar clasped his hands together. Instantly, endless hard and tough giant trees surged from the ground, transforming the area ahead into a sea of trees in an instant, strangling the giant worm in mid-air.
After the giant worm was annihilated, Yu Zhibo's mirror avatar's body gradually faded, finally dissipating completely.
From beginning to end, there was not the slightest fluctuation in his expression.
"Not bad, Chengsong!"
After Uchiha Madara had slain his opponent, his face wore an expression as if he had just stepped out of a massage parlor. He looked at Yu Chengsong with admiration. "The ability of your eyes is indeed terrifying. But for that giant worm just now, you could have summoned my mirror avatar. There was no need to expend your father's pupil power."
As he spoke, a hint of regret appeared on his face. "By doing this, your father will find you soon... if he hasn't already left this world."
He still wanted to fight a few more battles.
As Uchiha Madara spoke, his expression suddenly changed.
Because he sensed the aura of a Flying Thunder God.
And that aura originated from Yu Chengzhe.