Genshin Impact.

After going through many hardships, Lin Feng and Li Er finally realized the true meaning of the immortal heart guard under the guidance of the old man. However, their mission is far from over, and new challenges are waiting for them.

In a quiet valley, Lin Feng and Li Er stood side by side, the breeze brushing their hair, bringing a hint of coolness. The old man walked slowly, his eyes revealing solemnity and expectation.

"Lin Feng, Li'er, although you have grown in the trial of Immortal Heart Guardian, the real test has just begun." The old man's voice echoed in the valley.

Lin Feng looked determined and bowed, saying: "Senior, no matter what difficulties and obstacles lie ahead, we will do our best." Li'er also nodded slightly, with a firm light flashing in her eyes.

The old man smiled slightly, took out a yellowed ancient book from his arms, and handed it to Lin Feng: "This is the secret book of the immortal sect, which records many unknown immortal secrets, but it can only be used at the critical moment."

Lin Feng took the ancient book solemnly, as if he had taken over a heavy responsibility.

At this moment, a strange light suddenly flashed across the sky, followed by a powerful spiritual power fluctuation. The three people's faces changed and they immediately became alert.

"This power... seems to come from a distant mysterious place." The old man frowned and fell into deep thought.

"Senior, could this be related to our mission?" Li'er asked softly.

The old man nodded slightly and said, "Perhaps this is the guidance of fate. You need to go and find out. Remember, be careful on the way."

Lin Feng and Li'er looked at each other and set out on their journey without hesitation.

They crossed dense forests, crossed turbulent rivers, and encountered all kinds of strange monsters and dangerous traps along the way. But with firm beliefs and tacit cooperation, they managed to escape danger time and time again.

Lin Feng and Li'er stopped at the foot of a towering mountain. The mountain in front of them was shrouded in clouds and mist, exuding a mysterious and powerful aura.

"Li'er, this mountain may not be simple. We need to be careful." Lin Feng reminded.

Li'er nodded, and the two began to climb the mountain carefully. The mountain road was rugged and difficult to walk on, and the higher they went, the greater the pressure. But they gritted their teeth and climbed up step by step.

Finally, they reached the top of the mountain and saw an ancient palace standing before them, with its gate tightly closed and intricate runes carved on it.

Lin Feng tried to push the door open, but found that it did not move at all. Li Er carefully observed the runes on the door, and suddenly an idea came to her mind: "Lin Feng, perhaps these runes are the key to unlocking the door."

The two began to study the rules of the runes, and after some effort, the door slowly opened. A strong suction force sucked them into the palace.

The palace was filled with mysterious light, and various precious magic weapons and secret books were placed around. Lin Feng and Li'er were shocked by the scene before them, but they were not confused by the immediate benefits, but continued to look for clues.

Deep in the palace, they found a huge stone tablet with a line of words engraved on it: "Guarded by the Immortal Heart, Inherited by the Mission."

At this moment, a mysterious voice sounded in their ears: "Lin Feng, Li'er, you are the chosen ones, shouldering the important task of protecting the Immortal Gate. Only by passing the final test can you obtain the power of inheritance."

As soon as the words fell, the surrounding scene changed instantly, and they were in a space full of illusions. In the illusion, they saw the rise and fall of the immortal sect, and saw countless immortal sect disciples heroically sacrificed to protect justice.

Lin Feng clenched his fists, a strong sense of mission surged in his heart: "No matter what, we can't let the inheritance of the Immortal Sect be cut off."

Tears glistened in Li'er's eyes: "We will definitely be able to complete our mission."

In the test of the illusion, they need to face the fears and desires deep in their hearts. Lin Feng faces the temptation of power and sticks to his heart; Li Er faces the entanglement of emotions and makes a decisive choice.

After a long and difficult test, they finally broke through the illusion.

At this moment, a brilliant light descended from the sky and merged into their bodies. They felt a powerful force surging in their bodies, which was the power of inheritance.

Lin Feng and Li Er smiled at each other, knowing that this was just a new starting point. With a mission and strength, they set out on their journey home, ready to meet more challenges in the future.

When they returned to the old man, he looked at them with satisfaction and said, "You have done a good job. The future of the Immortal Sect depends on you."

Lin Feng and Li'er nodded solemnly. Their immortal journey will continue to write a new glorious chapter.