Genshin Impact.

Lin Feng, Li Er and the old man went down to the mortal world to experience the tribulation. Along the way, they witnessed many joys and sorrows in the human world. For them, this tribulation was not only a test of their practice, but also a test of their state of mind.

The three of them stopped for a while in a bustling town. The streets were bustling with people shouting, talking and laughing. Looking at the lively scene, Lin Feng was filled with emotion: "Although this mortal world is not as ethereal and pure as the fairyland, it also has a different kind of vitality and charm."

Li'er's lively eyes sparkled with curiosity, and she looked around at everything around her. The old man had a calm expression, as if the hustle and bustle of the world could not stir up a ripple in his heart.

Suddenly, a strange light flashed in the sky, and then a mysterious force enveloped the entire town. Lin Feng's heart tightened, and he realized that this force was unusual. He whispered: "Everyone be careful, this force comes strangely."

The old man frowned slightly, counted with his fingers, and said solemnly: "This is a variable in the immortal fate. I am afraid that our journey of tribulation will encounter twists and turns."

Before he finished speaking, people in the town fell into a deep sleep, and the entire street became silent. Lin Feng looked around vigilantly, and saw an illusory figure slowly emerging. The figure exuded a powerful aura that made people shudder.

"Who are you? How dare you cause trouble here!" Lin Feng shouted angrily.

The illusory figure sneered: "Hmph, ignorant children, your journey to immortality will end here." After that, the figure raised his hand and waved, and a powerful attack came towards the three people.

Lin Feng and Li Er quickly used their magic to resist, and the old man also joined the battle. The three of them started a fierce battle with the mysterious figure, and the light of the magic intertwined and illuminated the entire town.

However, the mysterious figure was extremely powerful, and the three gradually fell into a disadvantage. Lin Feng gritted his teeth and struggled to resist the opponent's attack, thinking to himself: "I must not fall here, otherwise I will fail in my tribulation and my immortal path will be in jeopardy."

A layer of light blue light appeared on Li'er's body. She used a powerful magic to temporarily force the mysterious figure back. Taking advantage of this gap, the old man said: "This enemy is strong. We need to find its weakness to win."

The three of them fought with the mysterious figure while observing his moves, trying to find flaws. After a fierce battle, Lin Feng discovered that although the attack of the mysterious figure was powerful, every time after using a powerful magic, there would be a short period of mana stagnation.

"Now!" Lin Feng shouted, and launched the strongest attack together with Li'er and the old man. Three beams of immortal magic light gathered together and attacked the weak point of the mysterious figure.

The mysterious figure was unable to dodge and was hit by the attacks of the three people, letting out a scream. However, he did not disappear, but became even crazier, and the aura around him became more violent.

"Oh no, he's going to fight to the death!" The old man's face changed.

The mysterious figure launched the final attack desperately, and a huge energy beam shot towards the three people. At this critical moment, Lin Feng stepped forward, protected Li'er and the old man behind him, and used his defense magic with all his strength.

"Boom!" The powerful energies collided, creating a huge explosion. Lin Feng was blown away by the aftermath of the explosion and fell heavily to the ground. Li'er and the old man hurried over to check on his injuries.

"Lin Feng, are you okay?" Li'er asked anxiously.

Lin Feng stood up with difficulty, wiped the blood from the corner of his mouth, and said, "I'm fine, don't worry."

At this moment, the aura of the mysterious figure suddenly disappeared without a trace, and the mysterious power shrouding the town also dissipated. The people in the town gradually woke up, as if nothing had happened.

The old man looked at the sky and said thoughtfully: "There must be a hidden reason behind this change in fate. We need to act carefully and continue to complete the journey of tribulation."

Lin Feng and Li'er nodded, and the three of them packed up their luggage and continued on their journey to immortality.

After leaving the town, they entered a dense forest. The forest was filled with thick fog, making it difficult to tell the direction. Lin Feng carefully explored the way ahead, and Li'er and the old man followed closely behind.

Suddenly, there was a sinister laugh from all around. "Haha, do you think you can escape from my clutches?"

The three stopped and looked around vigilantly. They saw a group of figures walking out of the fog. They were wearing black robes, and their faces were covered by shadows, so they couldn't see clearly.

"Who are you?" Lin Feng asked.

One of the men in black robes sneered and said, "These are the people who will take your lives." After that, the men in black robes launched attacks one after another, and black rays of light shot towards the three people.

Lin Feng and Li Er quickly used magic to fight back, and the old man assisted them. The two sides started a fierce battle. For a while, the forest was full of flashing lights and roaring magic.

During the battle, Lin Feng discovered that although the attacks of these black-robed men were strange, their strength was not particularly strong. He and Li'er cooperated with each other and gradually gained the upper hand.

However, just when they were about to defeat the black-robed men, they suddenly formed a strange formation. A strong suction force emanated from the formation, sucking Lin Feng and Li'er in.

The old man wanted to rescue them, but it was too late. He looked at the two people who disappeared in the formation, and a trace of worry flashed in his eyes: "You must hold on, I will find a way to rescue you."

Inside the formation, Lin Feng and Li Er found themselves in an unfamiliar space. The surroundings were filled with a dark atmosphere, which made people feel depressed.

"Lin Feng, what is this place? What should we do?" Li'er asked in panic.

Lin Feng comforted him: "Don't be afraid, we will definitely find a way out."

The two began to explore this space, looking for an exit. Not far from them, there was a faint light flickering. They walked towards the direction of the light and found a huge stone door.

The stone door was engraved with strange runes. Lin Feng tried to decipher them, but he had no clue. Just when they were at a loss, the stone door slowly opened, and a powerful force surged out from it, sucking them in.

Inside the stone gate was a huge palace. Various strange magic weapons and books were placed in the palace, and mysterious light flickered on the walls. Lin Feng and Li'er walked into the palace carefully, and suddenly, a voice sounded in their ears.

"Welcome to the land of immortality. You can only leave here if you pass the test."

Lin Feng and Li'er looked at each other, knowing that a new challenge was coming. They took a deep breath and walked towards the depths of the palace...