100,000 years, 5.2 billion

In this mysterious check-in space, Ye Yun had successfully checked in for 100,000 years and had checked in 5,256,000,000 times in total. However, the search results did not provide enough information about the specific content and subsequent developments of the check-in, so they could not get a more detailed answer.

A Billion Years of Longevity was a novel by the author, Mu Xiaobao. The novel told the story of the main character Chen Feng's life span of one billion years. He once created humans with Nüwa in the Nine Heavens, traveled through China, helped Emperor Yan and Emperor Huang, defeated the ancient evil god Chiyou, and even helped Shennong taste the herbs. This novel was based on sci-fi suspense. It had been completed and was being published on the Black Rock Network. The specific content and chapters can be read or downloaded for free on the relevant reading platforms. As for Chen Feng and Su Yifei's plot and character information, no relevant information was provided.

A Billion Years of Longevity Chen Feng was a novel written by the Buddhist author, Mu Xiaobao. This novel told the story of the main character Chen Feng's one billion years of longevity. He had once created humans with Nüwa in the Nine Heavens, traveled through China, helped Emperor Yan and Emperor Huang, defeated the ancient evil god Chiyou, and even helped Shennong taste all kinds of herbs. This novel was based on sci-fi suspense. It had been completed and was being published on the Black Rock Network. The specific content and chapters can be read or downloaded for free on the relevant reading platforms. As for Chen Feng and Su Yifei's plot and character information, no relevant information was provided.

Obtaining a cultivation base of a trillion years through AFK Farming referred to using the AFK Farming System or other methods. The character in the novel or anime obtained a cultivation base of a trillion years through AFK Farming. The specific plot and details may vary from work to work, but generally speaking, hacking meant that the character played the game automatically or without the player's intervention. This question did not provide a specific work or plot, so it was impossible to give a more detailed answer.

Invincible for a Billion Years was a novel about becoming a trillion-dollar millionaire after rebirth. There were a few novels that could be recommended, including " The Best of the Rich " and " Invincible in the City for a Billion Years." However, other novels on the subject did not provide enough information. Therefore, it was impossible to determine if there were other similar novels.

" A Billion Years of Living in the City " was an urban novel written by Red Dragon Feifei. The story told the story of the protagonist, Chen Zheng, who had experienced the prehistoric Earth, the Jurassic period, and other eras. He traveled through the myriad worlds and finally returned to a certain time node on Earth. Although his cultivation base was weakened, his body and Yuan Shen were immortal. With the experience of the past billions of years, he could roam freely in the city and play with the world. This novel was completed, with a total of 2757 chapters.

" Chaos Sign in for a Billion Years " was a fantasy magic novel written by Luan Ziyi. The story was about the protagonist, Su Baiyi, who had transmigrated into chaos and was bound to the daily check-in system. In the past one billion years, he had been summoned by the girl to become a guardian spirit. The girl was very surprised by Su Baiyi's guardian spiritual space that was larger than the world. In the story, Su Baiyi had divine level techniques and divine level pills. He even had pets such as divine dragons and real phoenixes. The novel had a total of 164 chapters and was a complete novel.

Obtaining a cultivation base of a trillion years through AFK Farming referred to using the AFK Farming System or other methods. The character in the novel or anime obtained a cultivation base of a trillion years through AFK Farming. The specific plot and details might vary from work to work, but generally speaking, hacking meant that the character would automatically operate the game or cultivate without the player's intervention, thereby obtaining a large amount of resources and cultivation. Although there was no specific work or plot description in the search results provided, it could be inferred that the cultivation of hundreds of millions of years was a common immortal cultivation setting, which was widely used in novels and anime works.

"Fantasy: I Come to a Billion Years Later" was a fantasy novel. It told the story of the protagonist, Lin Tian, as the guardian spirit, who crossed a billion years and became the guardian spirit of a beautiful woman a billion years later. He could freely travel between the two eras. In this era, ancient laws and cultivation techniques displayed great power. Lin Tian expressed that he wanted to dominate this era. The novel was written by the author, Mengran, and has been updated to chapter 2259.

[10 Billion Years of Cultivation at the Beginning] is a novel. It can be read online.