I, a centenarian, sweep through the gates of immortality.

After following those demonic cultivators for a long time, surrounded by desolate mountains and wilderness, Lin Feng, who was unfamiliar with the area, had no idea where he was.

As they stopped by a large lake, the leading demonic cultivator cast a spell, and a crack appeared in the lake's surface. It wasn't very wide, only about two people's width apart, leading directly to the bottom of the lake.

"Go in."

Lin Feng was quite puzzled, but he dared not show it.

They were talking about going up the mountain, but now they've stopped by a lake. Could it be that the evil sects are hiding there?

Seeing the other demonic cultivators filing in, Lin Feng didn't dare to delay and followed them in.

It was only then that Lin Feng realized that there was actually an empty space beneath the surface of the lake.

Apart from a layer of lake water on the surface, the area below is completely empty, with various array formations and talismans reflecting each other, concealing everything beneath the lake's surface.

After walking for a short while at the bottom of the lake, a huge mountain gate appeared before Lin Feng.

Two large characters are written on the mountain gate.

"Lingyuan".

Following behind the group of demonic cultivators, they entered the mountain gate, and the leading demonic cultivator spoke.

"You all go and rest first, I'll go and report to the elders."

"Remember, do not slack off. Focus on improving your cultivation, otherwise you will have no one to blame but yourself if you die in the City of Sighs."

Everyone agreed and then dispersed, leaving Lin Feng with an awkward expression.

After possessing the body, the original consciousness of this body was completely erased. Lin Feng didn't know where he should live. In order not to let others see through his act, Lin Feng didn't dare to ask. He could only pretend to be very tired and wander around aimlessly.

"We must first find the Demonic Sect's library."

"At the very least, we need to understand the relevant situation first, otherwise we won't be able to keep up the act for long before we're discovered."

After walking for a short while, Lin Feng found a towering pavilion to the north, which was the sect's scripture pavilion.

"Let's go in and take a look."

The scripture pavilions of various sects are generally open to their members unconditionally, and even the Demonic Sect is no exception. Lin Feng entered the scripture pavilion smoothly without encountering any obstacles.

Lin Feng hurriedly went to find the cultivation techniques practiced by this sect, carefully studied them, and gained a general understanding.

"Fortunately, it's not too different from the demonic techniques I practiced before."

"If I'm careful in disguising myself, I should be able to keep this a secret for a while."

"They've been talking about Sighing City. It seems like all the disciples in the sect have gone back. I need to find out beforehand so I don't give myself away."

With this in mind, Lin Feng began searching for information about the City of Sighs. Before long, he opened an ancient book, which clearly recorded the relevant information.

It turns out that since the ancient war between good and evil, the demonic sects have declined and their living space has been greatly compressed. They can only hide underground like this sect, and the resources they can obtain are extremely limited.

However, resources are essential for improving cultivation, so these demonic sects joined forces to build a city.

This city was built beneath the Hong River, a place where five rivers converge, and where the earth's veins, water veins, and dragon veins intersect, making it extremely rich in spiritual energy.

The Demonic Sect used a large amount of magical jade to forge this city, drawing in spiritual energy and nurturing various spiritual herbs and magical treasures.

However, due to the city's special location and materials, entering the city is extremely difficult, almost a matter of life and death. Every time it opens, a large number of demonic sect disciples die inside, hence it is called the City of Sighs by the demonic sect disciples.

After reviewing the relevant information, Lin Feng rubbed his chin and pondered silently.

"According to records, this City of Sighs contains many treasures for nourishment, and the entire city is said to gather a large amount of spiritual energy. If I enter and absorb it with the jade pendant, wouldn't my cultivation level increase greatly?"

"Looks like I need to prepare properly."

After putting down the ancient books, Lin Feng did not leave the Scripture Pavilion, but instead prepared to cultivate there.

The Sutra Repository is quiet and has very few visitors, making it a perfect hiding place for Lin Feng.

"call!"

Taking a deep breath, Lin Feng sat cross-legged, preparing to mobilize his spiritual energy according to the Demonic Sect's techniques.

However, at that moment, the door of the library was suddenly pushed open, and a young child rushed in in a panic, running around and looking around, trying to find a place to hide.

Seeing this, Lin Feng quickly turned around and hid to the side.

Not long after, two demonic cultivators dressed in black robes barged in, looked around for a moment, and quickly locked their gaze on the child.

The two demonic cultivators had smiles on their lips, but their eyes clearly flashed with greed and ferocity.

"hey-hey."

"Little guy! We're going to help you modify your body, why are you running away?"

The child was hiding behind a bookshelf, crouching on the ground with his head in his hands, trembling all over.

The two demonic cultivators walked over and grabbed the child's right hand.

"You can't escape. Cooperate with us obediently, and you'll suffer less."

The child struggled in terror and screamed.

"No! No!"

"Please let me go back, I beg you!"

"If you kill me, my master will not let you get away with it!"

The two demonic cultivators exchanged a smile and said with a fierce expression.

"Liu Qingqing? Haha, your master is probably in dire straits himself right now!"

At this point, one of the demonic cultivators picked up the child and, without saying a word, tried to drag him away.

Lin Feng, who had been hiding in the shadows, froze on the spot when he heard the name Liu Qingqing.

"Liu Qingqing?!"

The root cause of Lin Feng's century of hardship was Liu Qingqing.

Lin Feng's inner demons over the past century have also been Liu Qingqing.

Upon hearing Liu Qingqing's name again, Lin Feng felt as if something had clenched his heart, causing a sudden, inexplicable pain, and his breathing became extremely rapid.

"Is this child Liu Qingqing's disciple?"

"For decades, she..."

For years, a knot in Lin Feng's heart remained untied. He wanted to speak, but he couldn't open his mouth. After struggling for a long time, he finally managed to utter two words.

"stop!"

When Lin Feng suddenly appeared, the two demonic cultivators were taken aback and asked him with some confusion.

"Senior Brother Song? What's wrong?"

Lin Feng pointed at the child and said coldly.

"Give this child to me."

Faced with Lin Feng's request, the two demonic cultivators appeared extremely unwilling and expressed their dissatisfaction.

"Senior Brother Song, this child is someone we finally found. He has an evil vein in his body. We plan to modify him and maybe we can turn him into a top-tier demon slave."

"You'll be going to the City of Sighs soon, this child is useless to you, so don't try to take him from us."

Lin Feng completely ignored the two demonic cultivators' explanations and simply uttered a few more words indifferently.

"Give me this child!"