Genshin Impact.

Under the guidance of the old man, Lin Feng and Li Er started their journey to the mortal world. After many tests and twists and turns, they are now in the whirlpool of the mortal world, and their understanding of the immortal path is constantly changing.

Lin Feng stood on the bustling street, looking at the people coming and going, feeling confused. He originally thought that coming to the mortal world to experience the tribulation was just a simple test, but he did not expect that the complexity of the mortal world was far beyond his imagination.

Li'er walked gently to Lin Feng's side, her eyes also revealing a hint of confusion and uneasiness. "Brother Lin Feng, what should we do next?" Li'er's voice was filled with a hint of helplessness.

Lin Feng took a deep breath and tried to calm himself down. "Li'er, don't be afraid. Now that we have embarked on this immortal journey, there is no turning back. No matter how many difficulties lie ahead, we must keep going forward with determination."

At this moment, a mysterious man in black appeared in front of them. The man in black was shrouded in darkness and his face could not be seen clearly, but the aura emanating from him made Lin Feng and Li'er feel oppressive.

"Are you Lin Feng and Li'er?" The black-clothed man's voice was icy cold.

Lin Feng looked at the man in black warily, "Who are you? Why do you know our names?"

The man in black sneered, "It doesn't matter who I am. What matters is that your immortal journey will end here."

After that, a black sword suddenly appeared in the hands of the man in black, and he stabbed towards Lin Feng and Li'er. Lin Feng and Li'er quickly used their magic to resist, but they found that the use of magic in the mortal world was greatly restricted, and their strength was greatly reduced.

In the fierce battle, Lin Feng and Li Er gradually lost the upper hand. Just when they were about to collapse, the old man suddenly appeared. The old man waved his cane, and a powerful immortal power surged out, repelling the man in black.

"Hmph, you little monster, how dare you act so presumptuously here?" the old man shouted angrily.

Seeing that the situation was not good, the man in black turned around and disappeared into a black shadow.

Lin Feng and Li Er breathed a sigh of relief and hurriedly thanked the old man. The old man looked at them and said solemnly: "This trip to the mortal world is much more dangerous than you imagined. There are many unknown dangers and challenges hidden in the mortal world. You must be careful."

Lin Feng and Li'er nodded, feeling even more worried about the road ahead.

Led by the old man, they came to an ancient temple, which was filled with a mysterious atmosphere, making people feel inexplicably awed.

The old man pointed to a Buddha statue in the temple and said, "This Buddha statue contains powerful immortal power. Perhaps it can help you improve your strength and better cope with the next challenge."

Following the old man's instructions, Lin Feng and Li Er sat cross-legged in front of the Buddha statue and began to practice. During the practice, their immortal hearts were constantly tested. Various distractions and temptations came one after another, trying to disturb their minds.

Lin Feng tried hard to eliminate distracting thoughts and focus on cultivation. However, just when he was about to break through the bottleneck, a terrible thought suddenly emerged in his mind. He began to doubt his original intention of cultivating immortals and whether the immortal path he was taking was correct.

Li'er also encountered the same problem. Her immortal heart began to waver and her cultivation fell into trouble.

The old man watched them from the side and sighed inwardly. He knew that this was the only way for the immortal heart to grow. If they could not overcome these confusions and perplexities, then their immortal journey would end here.

At the critical moment of cultivation, Lin Feng and Li Er suddenly fell into a mysterious illusion. In the illusion, they saw their past, present and future. They saw the hardships and setbacks they had experienced on the way to immortality, and saw the efforts and sacrifices they had made for immortality.

Lin Feng looked at himself in the illusion, and gradually he had the answer in his heart. He understood that although the road to becoming an immortal was full of hardships and challenges, it was his choice and his destiny. He could not give up his ideals and beliefs because of temporary confusion.

Li'er also found her immortal heart in the illusion. She strengthened her determination to cultivate immortality and no longer wavered.

When they woke up from the illusion, they found that their immortal power had been qualitatively improved. Their immortal hearts also became more determined and no longer confused.

The old man looked at them with a gratified smile on his face. "Very good, you have passed the test of the Immortal Heart. Next, there are more challenges waiting for you. I hope you can continue to work hard, complete the tribulation as soon as possible, and return to the Immortal Gate."

Lin Feng and Li'er smiled at each other. They knew that although the path to immortality was long and arduous, as long as they had firm beliefs, they would be able to reach the end.

In the following days, Lin Feng and Li Er continued to experience life in the secular world. They helped people solve their problems, fought against evil forces, and continued to grow through challenges.

However, what they don't know is that a bigger crisis is quietly approaching...