The magic book of time, by chance, was delivered to him by a mysterious woman.
In the past, he did not cherish it and made her leave this world with sadness. When a mysterious woman asked him what he wished for, he replied: "If I could go back to the past, I would like to treat that woman well."
I thought it was just a strange question, but little did I know that the turntable of time was quietly turning.
When she strangely appeared in front of him, he was so surprised that he couldn't say a word and could only stand there blankly.
Later, I realized that I had gone back to the past. Although he didn't know why, he cherished it.
She thought that he and she would live together peacefully like this, but found that many of his past memories were constantly changing.