Genshin Impact.

After going through many hardships, Lin Feng and Li Er finally passed the last round of tests hand in hand. At this moment, they stood in a quiet valley, with the breeze blowing and bringing bursts of flower fragrance.

"Brother Lin Feng, what kind of challenges will we face next?" Li'er blinked her bright big eyes and looked at Lin Feng.

Lin Feng gently held Li'er's hand and comforted her: "No matter what, I will protect you."

At this moment, a low rumble of thunder suddenly sounded in the sky, and a mysterious old man slowly appeared. His eyes were deep, as if he could see through everything.

"Children, your journey to immortality is far from over. Next, you will face a test concerning the protection of your immortal heart." The old man's voice was solemn and serious.

Lin Feng and Li'er looked at each other and said in unison: "We are willing to listen to your teachings."

The old man nodded slightly and said, "In this world, desire, temptation, and fear will all erode your immortal heart. If your immortal heart is unstable, your path to cultivation will be blocked. In this test, you will enter a fantasy world and face the deepest fears and desires in your heart. Only by sticking to your original heart can you break out of the realm."

After saying that, the old man waved his hand, and a ray of light enveloped Lin Feng and Li'er, bringing them into a fantasy world.

Lin Feng found himself in a prosperous city, surrounded by noisy people and a wide range of shops. His heart moved, and he thought of the wealth and glory he once longed for. However, he soon realized that this was an illusion and tried to keep himself awake.

Li'er was in a beautiful sea of ​​flowers, and there were waves of alluring songs coming from the sea of ​​flowers, as if calling her to indulge in it. Li'er bit her lips tightly, trying to restrain herself.

In the illusion, Lin Feng was constantly tempted by various things, such as power, wealth, and fame, but he always remembered his original intention and remained unmoved.

Li'er also encountered many difficulties, and the shadow of fear emerged from time to time. She remembered the agreement with Lin Feng and plucked up the courage to fight him.

As they held on, the temptation and fear in the illusion became stronger. Lin Feng saw the painful scene of losing his loved ones, and his heart ached. Li Er saw that Lin Feng was in a desperate situation, with his life or death uncertain.

"No! This is not true!" Lin Feng roared, struggling to break free from the shackles in his heart.

Li Er's tears fell, but she still said firmly: "I can't be deceived, Brother Lin Feng is still waiting for me!"

Finally, they broke through the illusion with their trust in each other and their persistence in the immortal path.

When they came back to reality, the old man looked at them with satisfaction.

"Children, you have passed the test. Only when your immortal heart is firm can you go further on the immortal path."

Lin Feng and Li'er smiled at each other. They knew that the road ahead was still long, but they had the confidence to face it together.

The old man continued, "However, the real challenge has just begun. In the fairy mountain ahead, there is an evil force hidden, which attempts to destroy the balance of the world. You need to go to the fairy mountain and seal it."

Lin Feng and Li'er nodded without hesitation and embarked on a new journey.

Along the way, they encountered attacks from various demons and monsters. Lin Feng used his powerful magic to repel the enemies again and again. Li'er used her wisdom to find a way forward for them.

After several days of traveling, they finally arrived at the foot of the fairy mountain. The mountain was towering into the clouds, shrouded in mist, and exuded a mysterious and dangerous atmosphere.

"Brother Lin Feng, I'm a little scared." Li'er held the corner of Lin Feng's clothes tightly.

Lin Feng stroked her hair gently and said, "Don't be afraid, I'm here."

They climbed up the steep mountain road, with rocks falling and strong winds howling from time to time, but they supported each other and did not retreat at all.

Finally, they reached the top of the mountain and saw an ancient palace standing before them, surrounded by black mist.

Lin Feng and Li'er walked into the palace cautiously. It was dark and eerie inside, with strange noises echoing.

Suddenly, a black shadow jumped out from the darkness and attacked them. Lin Feng reacted quickly and started a fierce battle with the black shadow.

Li'er watched anxiously from the side, looking for flaws in the black shadow.

After a hard fight, Lin Feng finally found the black shadow's weakness and defeated it in one fell swoop.

However, this is just the beginning. Deep in the palace, a more powerful evil force is awakening.

Lin Feng and Li'er took a deep breath and continued walking towards the darkness...