At the end of the Western Han Dynasty, there was a sixty-year-old Cao in Niujia Village outside Luoyang City. He and his wife lived on a few acres of land to survive. They also weaved and sold cloth for a few taels of silver on weekdays. Although the days were hard, they were also practical.

One day, Lao Cao's wife Liu brought some dry goods to her son in Luoyang City, and Lao Cao was alone at home doing some farm work.

The next day, Cao Laoweng found a dying gray rabbit next to the village well. Liu Laoweng saw that the rabbit was still angry and thought it was cute, so he took the gray rabbit home to apply medicine to it. Unexpectedly, the gray rabbit's injury improved after two days, which surprised Cao Laoweng and continued to keep him at home for treatment.

Half a month had passed unknowingly, and Grey Rabbit had recovered. He was alive and kicking around Old Man Cao all day, which filled Old Man Cao's heart with a feeling of happiness. However, Liu Shi had not yet returned home, which made Old Man Cao a little worried. The villagers told Old Man Cao a terrible thing. There was a war in Luoyang City and he had to flee to other places.

After another month, Liu Shi still didn't go home. At this time, Niujia Village was very desolate. Lao Cao talked to himself every day about his thoughts and prayers, and sometimes even cried bitterly.

Unknowingly, another month passed, and Liu Shi still did not come back. At this time, Lao Cao looked very haggard and in a trance. Every day, he sat at the head of the village with Liu Shi's portrait in hand, waiting for Liu Shi to come home.

One day, the gray rabbit flashed with a ray of light and turned into Liu Shi. She said softly, "Hey, I was originally a rabbit spirit for 500 years, and you saved me because I was seriously injured during the tribulation. Now it's time for me to repay my kindness."

Old Man Cao suddenly heard Liu Shi's voice and looked back. His demented eyes immediately became refreshed. He held Liu Shi's hand with trembling hands and asked with tears, "Why did you come back now?

Liu Shi smiled and said, "It's fine now, I'll help you go home, let's go, go home."

Lao Cao nodded and took Liu Shi's hand and headed home. As he walked, he nagged…