Genshin Impact.

Under the guidance of the old man, Lin Feng and Li'er finally set foot in the mortal world and began their journey of experiencing tribulations.

As soon as they entered the mortal world, the bustling scene of the world made Lin Feng and Li'er dazzled. The streets were bustling with people, the shouts of peddlers, the sounds of children playing, and the bargaining in the shops intertwined together, forming a picture full of the atmosphere of fireworks.

"Brother Feng, this mortal world is so lively." There was a gleam of curiosity in Li'er's lively eyes. She was wearing a light blue dress and looked like a fairy among the crowd.

Lin Feng smiled slightly, his eyes revealing determination: "Li'er, this time I came down to the mortal world to experience the tribulations, I must find opportunities and improve my cultivation. But in this vast world, where can I find opportunities?"

The two of them walked in the city and unknowingly came to a dilapidated temple. Although the temple was dilapidated, it still revealed a sense of solemnity.

"Brother Feng, I feel like there's something fishy in this temple." Li'er said softly.

Lin Feng nodded and walked into the temple with Li'er. A statue in the temple was already in tatters, and spider webs were all around it. Just as they were about to take a closer look, a black shadow suddenly jumped out from behind the statue and rushed towards Lin Feng.

Lin Feng reacted quickly, dodged to the side, and the sword in his hand was instantly unsheathed. A flash of sword light passed by, and the black shadow was forced back.

"Who are you!" Lin Feng shouted angrily.

The shadow revealed itself, and it turned out to be a fox demon. The fox demon's eyes flashed with cunning light, and he laughed: "Humph, you cultivators, dare to be so arrogant when you break into my territory."

Li'er stepped forward and said, "You fox demon, you are doing evil here, we will never forgive you."

The fox demon laughed: "Just you two little kids?" After saying that, the fox demon was filled with demonic energy and pounced on them again.

Lin Feng and Li'er cooperated with each other and started a fierce battle with the fox demon. The fox demon was agile and tricky, but Lin Feng and Li'er gradually gained the upper hand with their solid cultivation skills and tacit cooperation.

After a fierce battle, Lin Feng seized the opportunity and stabbed the fox demon in the vitals with a sword. The fox demon screamed, fell to the ground, and turned into a wisp of green smoke.

"Brother Feng, this fox demon is quite powerful. Perhaps it is related to the opportunity we are looking for." Li'er said.

Lin Feng thought for a moment and said, "Perhaps there are secrets hidden in this dilapidated temple. Let's look for it carefully."

The two searched everywhere in the temple and finally found a secret compartment under the statue. When they opened the secret compartment, they found a yellowed ancient book inside.

Lin Feng picked up the ancient book and gently opened it, only to see that it recorded an ancient method of cultivation.

"Lier, look, this ancient book may be the opportunity we are looking for." Lin Feng said excitedly.

However, just as they were preparing to study the ancient books, a group of mysterious people suddenly appeared in the temple. The leader was wearing a black robe and a mask on his face, so his face could not be seen clearly.

"Hand over the ancient books!" the man in black robe said coldly.

Lin Feng took the ancient book into his arms and said, "Who are you? Why do you want to steal the ancient book?"

The man in black robe snorted, "This ancient book originally belonged to us. How dare you little thieves steal it?"

After saying that, the man in black robe waved his hand, and the mysterious people behind him attacked Lin Feng and Li'er one after another.

A fierce battle broke out again. Lin Feng and Li'er fought hard, but the mysterious man was too powerful and they gradually fell into trouble.

At this moment, the figure of the old man suddenly appeared in the temple. The old man waved his sleeves and a powerful force surged out, repelling all the mysterious people.

"Master!" Lin Feng and Li'er shouted in surprise.

The old man looked at them and said, "You two are still inexperienced. Although this opportunity is good, it is also accompanied by danger. This ancient book is of great importance. We need to leave this place quickly."

Lin Feng and Li'er nodded and followed the old man out of the dilapidated temple.

However, what they didn't know was that a bigger crisis was waiting for them. Those mysterious people did not give up the fight for the ancient books. They secretly followed Lin Feng and others, waiting for an opportunity to act.

Lin Feng and his group came to a small town. The people in the town lived peacefully and calmly, but Lin Feng and his group did not dare to take it lightly.

In the inn in the small town, the old man was studying ancient books carefully.

"Master, what secrets does this ancient book contain?" Lin Feng asked.

The old man said slowly: "The cultivation method recorded in this ancient book can greatly improve your cultivation if you practice it successfully. But it also contains huge risks. If you are not careful, you will go astray."

Li'er said worriedly, "Then what should we do?"

The old man pondered for a moment and said, "We need to find a quiet place and slowly comprehend the mystery."

Just as they were discussing, there was a sudden noise outside the inn. Lin Feng opened the window and saw a group of men in black besieging the town.

"It's those mysterious people!" Lin Feng said.

The old man's face darkened: "They are really chasing us."

After saying that, the old man led Lin Feng and Li'er out of the inn and started a desperate fight with the man in black.

During the battle, Lin Feng and Li Er gradually comprehended some cultivation methods in the ancient books, and their strength was improved. They cooperated with the old man and gradually suppressed the man in black.

However, just as they were about to win, the leader of the men in black suddenly cast a powerful spell, and a black light came towards them.

Seeing this, the old man stepped forward and blocked the light with his body.

"Master!" Lin Feng and Li'er cried out in grief.

The old man spat out blood and said, "Feng'er, Li'er, it's fine for me to be your teacher. You must practice well and carry forward the methods in this ancient book."

After saying this, the old man fainted.

Lin Feng and Li Er held the old man on their backs with tears in their eyes and fled the town. They found a hidden cave in a valley and settled down temporarily.

In the cave, Lin Feng and Li Er guarded the old man day and night, and at the same time they were working hard to practice the methods in the ancient books. After a period of practice, their cultivation had improved significantly.

The old man finally woke up, and was very pleased to see the progress of Lin Feng and Li'er.

“Feng’er, Li’er, I know you have gained something. But the road ahead is still difficult, and we must work harder,” said the old man.

Lin Feng and Li'er nodded heavily. They knew very well that this journey had just begun and there were more challenges waiting for them.