So what if I'm useless? I'll become a saint!

Chen Yan curled his lips and revealed a helpless smile.

"I understand, don't worry."

He patted his chest, looking very confident.

Lei Tingyi thought for a moment, took out a small pill from his sleeve and handed it to Chen Yan.

"This is a disguise pill. After you take it, you can temporarily change into my appearance."

He explained, a hint of seriousness in his eyes.

Chen Yan took the pill and swallowed it without hesitation. The next moment, his face began to change subtly, gradually merging with Lei Tingyi's appearance.

"Okay, I am 'Thunder Yi' now."

He touched his face, his tone somewhat smug.

At the same time, Lei Tingyi's expression suddenly changed, and he keenly noticed something.

"Someone is coming, hide quickly."

He whispered to Chen Yan, with a hint of vigilance in his eyes.

Chen Yan sighed and spoke in a dissatisfied tone.

"When you two have finished what you need to do, you must thank me."

Having said that, he turned and left with a somewhat casual step.

Lei Tingyi and Ling Jiuan watched Chen Yan successfully lead the intruders away, and quickly took the opportunity to sneak into Cheng Xuan's yard.

The yard was empty; apparently everyone was busy in the front hall.

The two quickly searched the house, hoping to find some useful clues.

Ling Jiuan's eyes were as sharp as an eagle, not missing any details.

Suddenly, her eyes fixed on a seemingly ordinary shelf, which exuded a strange aura.

"This restriction is of fire attribute."

Ling Jiuan looked at Lei Tingyi with a complicated expression.

Lei Tingyi nodded, a solemn look in his eyes.

"The Cheng family is mainly based on fire attributes. Although Cheng Xuan's talent is not high, it is also pure fire attribute. This restriction should be set by him."

Ling Jiuan raised his hand, slapped out with a palm, and shouted softly.

"Xuantian Ice Art!"

The next moment, a biting cold air surged out and collided with the flame aura on the ban, making a "hissing" sound.

The restriction was finally broken, the secret compartment slowly opened, and a pitch-black passage appeared in front of the two.

There was a mysterious and strange atmosphere in the passage.

Lei Tingyi and Ling Jiuan looked at each other.

Lei Tingyi took out a night-shining pearl from his sleeve. The pearl emitted a soft light, illuminating the darkness ahead.

He walked in first.

"Follow me closely, this place might be dangerous, let's try to walk together."

As soon as the two stepped into the passage, the secret compartment behind them closed silently, isolating them from the outside world.

The passage was extremely long, and the two walked for a long time before finally reaching a valley.

The entire valley was shrouded in gloom. The surrounding stone walls were slippery and covered with moss, and the air was filled with a disgusting stench.

Lei Tingyi waved out a ball of spiritual power, which turned into a ray of light, dispelling the evil spirit in front of him, and his vision became a little clearer.

His expression became more serious.

"The evil spirit here is very strong. We must proceed with caution."

Ling Jiuan also felt the unusualness of this evil spirit. Her brows were furrowed and her heart was full of vigilance.

She nodded.

"I understand. We will handle this carefully together. Whatever secret is hidden here, we must uncover it."

The reason why demon cultivators are called demon cultivators is because they not only use evil spirits to practice, but also improve their cultivation by absorbing the cultivation of others.

The two continued to go deeper into the valley, their steps becoming more cautious, and they carefully observed the surrounding environment with every step.

But what they saw first was not something else, but a simple study.

Ling Jiuan and Lei Tingyi cautiously stepped into the study room they discovered unexpectedly, and their eyes were immediately attracted by the black wooden box on the desk.

This wooden box was very similar to the items in the secret compartment they found in Cheng Xuan's yard, and was also shrouded in a layer of restriction.

The difference is that this time the ban seems more evil and powerful. It exudes a frightening evil aura and was imposed by Cheng Xuan himself using his evil power.

"This time, Cheng Xuan used the evil spirit in his body to place this restriction."

Lei Tingyi said solemnly, his eyes revealing his deep disgust for this evil force.

Ling Jiuan nodded. She understood that this restriction was different from the previous ones and needed to be handled more carefully.

She summoned the Akabane Sword, which shone with a red light in her hand, as if it could cut off all evil.

However, when she swung her sword, she was surprised to find that the restriction did not move at all, and there was not even a trace of a crack.

Her brows were furrowed, her heart filled with surprise and confusion.

"This restriction is so strong that even my Akabane Sword can't break it."

She muttered, a hint of frustration in her eyes.

Lei Tingyi also felt the power of this restriction, and his eyes also revealed a solemn look.

He knew that in order to break this restriction, he had to find its weakness, otherwise even the most powerful attack would be in vain.

The two began to observe the ban carefully, trying to find its flaws.

This wooden box may contain important evidence of the Cheng family's collusion with the evil cultivators. Only by breaking the restriction can the evidence be found.

Lei Tingyi's eyes were solemn, he knew very well how powerful and strange this restriction was.

So, he gathered a ball of spiritual power, which contained tremendous thunder and destructive force, and struck directly at the restriction.

However, a strange scene happened.

The powerful thunder was like a drop in the ocean, absorbed silently by the restriction without causing any ripples.

Lei Tingyi and Ling Jiuan looked at each other, with disbelief flashing in their eyes.

They had never seen such a strange restriction that could absorb attack power.

"What on earth is going on with this restriction?"

Ling Jiuan asked with a frown, her heart full of confusion and uneasiness.

Lei Tingyi pondered for a moment and spoke slowly.

"This restriction was most likely set up by Cheng Xuan using some evil secret method. It can absorb the attack force and convert it into its own nutrients, making the restriction stronger."

When Ling Jiuan heard this, a trace of solemnity flashed in his eyes.

She understood that in order to break this restriction, she had to find its source, otherwise even the most powerful attack would be in vain.

"We have to find Cheng Xuan. Only he can remove this restriction."

Lei Tingyi shook his head, his eyes revealing a hint of helplessness and solemnity.

"Just think about it and you will know that even if we find Cheng Xuan, it will be useless. His cultivation has long been above the Nascent Soul stage. At this time, if the two of us face him, we may not have a chance of winning."

Ling Jiuan frowned when she heard this, she understood that Lei Tingyi's worries were not groundless.

Cheng Xuan's cultivation is unfathomable, and although the two of them are quite powerful, they may not be his opponents.