Genshin Impact.

After going through numerous hardships, Lin Feng and Li Er finally completed their journey to the mortal world. At this moment, they embarked on the journey to return to the immortal world.

The immortal gate was wide open, auspicious clouds were swirling around, Lin Feng and Li'er walked hand in hand, the immortal spirits on them shone brightly under the sunlight. The old man stood in front of the immortal gate, smiling, his eyes full of satisfaction.

"Lin Feng, Li'er, you have gained a lot from this experience on earth. But the road to immortality is long, and there are more challenges waiting for you in the future." The old man's voice echoed in the empty fairyland.

Lin Feng and Li'er looked at each other, then bowed deeply to the old man. "Thank you for your guidance, senior. We will definitely live up to your expectations."

The old man nodded slightly, waved the whisk in his hand, and a fairy light enveloped the three people, instantly taking them to the depths of the fairy palace. In the fairy palace, the fairy air was so rich that it was almost tangible, and all kinds of exotic flowers and plants competed for beauty, and magical birds and beasts shuttled through it. Lin Feng and Li'er looked at this familiar yet unfamiliar scene, with a lot of emotion in their hearts.

“You should go into seclusion and practice first to consolidate your realm. When the time is right, I will entrust you with another important task.” After the old man finished speaking, he disappeared in a flash.

Lin Feng and Li Er followed the instructions and came to the cultivation cave. They sat cross-legged on the cushions, closed their eyes, and began to practice immortal techniques. Immortal energy continuously flowed into their bodies, nourishing their meridians and dantian.

Time flies, and three months have passed in the blink of an eye. Lin Feng and Li Er both came out of retreat, their auras became more stable, and their strengths also improved significantly. At this time, the old man appeared in front of them again.

"Lin Feng, Li'er, with the popularity of anime nowadays, the connection between the two-dimensional world and our fairy world is becoming increasingly close. However, there is an evil force working in secret, trying to destroy the balance between the two worlds. I order you to go to the two-dimensional world, investigate the matter, and maintain peace between the two worlds." The old man said seriously.

Lin Feng and Li Er accepted the order without hesitation. They set out on their journey again, passed through the immortal gate, and entered the second dimension world.

The two-dimensional world is colorful and full of wonderful scenes. On the streets, anime characters come and go, some are heroes with super powers, some are cute magical girls, and some are mysterious ninjas.

Lin Feng and Li Er carefully integrated into this world and began to investigate the traces of evil forces. They found that whenever there was a large-scale anime exhibition or event, some strange things would happen. For example, abnormal energy fluctuations, missing characters, etc.

At an anime exhibition, Lin Feng and Li Er finally found a clue. A black shadow flashed through the crowd. Although it was extremely fast, it was still captured by Lin Feng. They immediately chased after it. The black shadow realized that it was being followed and turned into an alley.

There was a strange atmosphere in the alley, and strange lights flickered on the walls. Lin Feng and Li'er walked into the alley carefully. Suddenly, countless phantoms appeared around them. These phantoms were all powerful anime characters, but their eyes were full of evil.

"Oh no, it's an illusion!" Lin Feng shouted coldly, and waved the immortal sword in his hand. A flash of sword light passed by, trying to break the illusion. However, the illusion did not move at all, but became more real.

Seeing this, Li'er formed seals with her hands and muttered something. A beam of immortal light shot out from her hands, echoing with Lin Feng's sword light. With the combined efforts of the two, a crack finally appeared in the illusion.

They took the opportunity to break through the illusion and continued to track the shadow. The shadow fled to an abandoned factory, which was filled with thick black smoke and a pungent smell.

Lin Feng and Li'er walked into the factory carefully, and saw a black shadow standing in front of a huge machine with a black crystal ball in his hand.

"You are finally here." The black shadow turned around and revealed a ferocious face.

"Who are you? Why do you want to destroy the balance between the two worlds?" Lin Feng shouted angrily.

"Humph, who I am is not important. What's important is that you can't stop my plan." The shadow said, and put the crystal ball in his hand into the machine. The machine immediately started to run, making bursts of roaring sounds, and a powerful evil force surged out of it.

Lin Feng and Li Er rushed forward without hesitation and started a fierce battle with the black shadow. They used various magics to collide with the evil power of the black shadow. For a moment, light shone everywhere and explosions sounded one after another.

After a hard fight, Lin Feng and Li Er finally defeated the black shadow and destroyed the machine. However, they found that this was just the tip of the iceberg of evil forces. In the depths of the two-dimensional world, there are even more powerful enemies waiting for them.

"It seems that this battle has just begun." Lin Feng looked into the distance, his eyes full of determination.

Li'er nodded, "No matter how many difficulties we face, we will not back down."

The two held hands and set out on their journey again. Their figures gradually went away in the afterglow of the setting sun, and their immortal journey became more exciting with each challenge...