Genshin Impact.

Led by a mysterious old man, Lin Feng, Amber and Li'er embark on a journey full of unknowns and dangers. Their goal this time is to find the legendary lost treasure, which is said to have the power to change the world.

They were surrounded by a gloomy forest, with ancient trees towering into the sky, their branches and leaves intertwined, blocking out the sunlight. The ground was covered with thick fallen leaves, which made a "crunching" sound with every step, as if the forest was warning them.

"Everyone, be careful. There may be various dangers hidden in this forest." The old man said solemnly.

Lin Feng nodded, holding his sword tightly in his hand, and looking around vigilantly. Amber and Li'er followed closely behind the old man, their staffs flashing faintly, ready to deal with any possible danger at any time.

Suddenly, a gust of wind whistled past, rustling the leaves, and in the wind, there was a low roar.

"Oh no, it's a monster!" The old man's face changed and he said loudly.

Before he finished speaking, a huge black monster rushed out from the woods. It was huge, covered with hard scales, and had a pair of blood-red eyes flashing with ferocity. The monster opened its bloody mouth and pounced towards them.

Lin Feng went forward without hesitation, the sword in his hand flashing with cold light. He displayed his unique sword skills, and sword energy slashed at the monster. The monster waved its claws and smashed the sword energy one by one. Amber and Li'er were not to be outdone. They cast magic, and flames and frost flew towards the monster.

The monster had many wounds on its body under their attack, but it did not retreat at all, but became even crazier. It swung its tail violently and swept towards the old man. The old man dodged the monster's attack and waved the staff in his hand, and a powerful magic light shot towards the monster.

The monster was hit by the magic light and let out a painful roar. It turned and pounced on the old man. Lin Feng took the opportunity to jump up and stabbed the monster's back with the sword in his hand. The sword pierced deeply into the monster's back. The monster let out a scream and fell to the ground.

"Finally solved." Lin Feng breathed a sigh of relief and wiped the sweat from his forehead.

"Don't be careless, this is just the beginning." said the old man.

They continued to move forward, encountering many dangers along the way. There were traps, poisonous fog, and various mysterious magic arrays. But under the guidance of the old man, they resolved them one by one.

Finally, they arrived in front of an old castle. The gate of the castle was closed and there was a mysterious atmosphere around it.

"The treasure is in this castle," said the old man.

Lin Feng walked forward and pushed the door hard, but it didn't move at all.

"Let me do it." Amber said. She cast a spell, and a flame flew towards the gate. But the moment the flame touched the gate, it was absorbed by a mysterious force.

"It seems that this gate is protected by magic." Li'er said.

The old man walked forward, carefully observed the gate, then waved his staff and muttered something. As the old man chanted, the magic light on the gate gradually weakened.

"Hurry, open the door now." said the old man.

Lin Feng and the others worked together and finally pushed open the door. Inside the door was a spacious hall, surrounded by various ancient statues and artifacts. In the center of the hall, there was a huge treasure chest.

"The treasure is there," said the old man.

Lin Feng and the others ran towards the treasure chest excitedly, but just as they were about to reach it, the ground suddenly began to tremble, and a huge monster emerged from the ground.

The monster was even larger than the previous monster, and it exuded a powerful aura.

"What kind of monster is this?" Amber said in horror.

"This is the monster guarding the treasure. We must defeat it to get the treasure." said the old man.

Lin Feng took a deep breath and tightened his grip on his sword again. Amber and Li'er were also ready for battle.

The monster rushed towards them, and they started a fierce battle with the monster. The monster's attack was very powerful, and they gradually fell into trouble. But they did not give up, and still stubbornly resisted the monster's attack.

Just when they were about to collapse, Lin Feng suddenly discovered the monster's weakness. He used his sword skills and stabbed at the monster's weakness. The sword accurately stabbed the monster's weakness, and the monster screamed and fell to the ground.

They successfully defeated the monster and opened the treasure chest, which was filled with various precious treasures and magic secrets.

"We finally succeeded." Lin Feng said excitedly.

"Yes, but this is just the beginning of our journey of exploration." said the old man.

They left the castle with the treasure and continued on a new journey of exploration...