Genshin Impact.

After going through numerous tests, Lin Feng, Li Er and the old man set out on a journey to the mortal world to experience trials and tribulations. They arrived in a world full of mystery and fantasy.

Lin Feng stood tall, his eyes were firm and brave, he was dressed in green, with a sword on his waist, exuding an extraordinary temperament. Li'er was beautiful, her smart eyes sparkled with intelligence, she was wearing a pink dress, like a fairy descended to the earth. The old man, with white hair, was vigorous, his eyes contained endless wisdom.

They landed in a bustling town, where people were coming and going. Lin Feng observed everything around him curiously, while Li'er was attracted by the small things on the street.

"I must gain something from this trip down to the mortal world." The old man said, stroking his beard.

Lin Feng nodded, "Senior, where should we start?"

The old man smiled and said, "Let's experience the world first, maybe the opportunity will come."

At this moment, a little boy ran by in a hurry and accidentally bumped into Li'er. Li'er stumbled and Lin Feng quickly supported her.

"I'm sorry, sister." The little boy said timidly.

"It's okay, why are you in such a hurry?" Li'er asked gently.

The little boy had tears in his eyes, "My mother is sick, I want to find a doctor."

Lin Feng felt pity and said, "Let's go with him and take a look."

The group arrived at the boy's home and saw a woman lying on the bed, her face pale. The old man went up to check and said, "This disease is not difficult to cure, it just requires a few herbs."

Without saying anything, Lin Feng went out to look for herbs. After some effort, he finally found the herbs he needed. After the woman took them, her condition gradually improved.

The little boy burst into tears of gratitude, "Thank you, you must be gods who came down to earth to save us."

Lin Feng smiled and said, "We are just trying our best to help."

After staying in the town for a few days, Lin Feng and his companions decided to move on. They walked into a dense forest with towering ancient trees, which was eerie and scary.

Suddenly, a gust of wind whistled past, and a huge monster appeared in front of them, with its fangs bared and claws waving, looking fierce and aggressive.

Lin Feng was not afraid at all and drew his sword, "Li'er, you and the senior step back."

Li'er said worriedly: "Lin Feng, be careful!"

Lin Feng had a fierce battle with the monster. His swordsmanship was sharp and his body was agile. However, the monster was too powerful and Lin Feng gradually lost the upper hand.

At this moment, the old man took action and cast a powerful spell to immobilize the monster.

"Lin Feng, take advantage of now!" the old man shouted.

Lin Feng took the opportunity to stab the monster in the vitals with a sword, and the monster fell to the ground with a bang.

"Thank you for your help, senior." Lin Feng said.

"Keep going, this is just a small test," said the old man.

They walked out of the forest and came to the foot of a high mountain, which was shrouded in mist and full of mystery.

"It is said that there is a magic weapon left by an immortal on this mountain. If we can get it, it will be of great benefit to our practice." said the old man.

Lin Feng's eyes were determined, "Then let's go up the mountain and find out what's going on."

The mountain road was rugged and difficult to travel, so they climbed up carefully. On the way, they encountered various traps and obstacles, but they overcame them one by one.

Finally, they arrived at a cave on the top of the mountain. There was a powerful barrier at the entrance of the cave, blocking their entry.

Lin Feng tried to break the barrier with his sword, but it was useless. Li'er also used her own magic, but still couldn't break through.

The old man pondered for a moment and said, "Let me try."

The old man formed seals with his hands and muttered something. A ray of light shot out from his hands, and a crack appeared in the barrier.

Lin Feng and others took the opportunity to enter the cave, only to see various precious magic weapons and secret books placed inside.

Just as they were about to make their choice, a deep voice suddenly rang out, "Who are you? How dare you trespass here!"

A mysterious figure appeared in front of them, and it turned out to be the guardian of the cave.

The guardian was very powerful, and Lin Feng and others fought a thrilling battle with him...