Can someone help me find a novel with a vague name that I read many years ago?

The main character was reborn in a rich family. He had a childhood sweetheart in kindergarten and became the number one or number two assassin in Asia when he was in his teens. The only thing I remember is that the protagonist has an affair with a female boss of the underworld.

Answer 1

"The Book of the Past" is an ancient romance novel written by the author Ye Yixi. The general plot of this novel is as follows:

Gu Xinian had died, but he had come back to life as a book. She had a new father. Although her father wasn't very reliable, she had a younger sister. Although her younger sister didn't like her at first, she later met an older brother who was four or five years older than her. However, she wanted to be her father wholeheartedly…However, this wasn't a big deal. The main point was, why was this person, whom she had only met briefly, looking for her and saying that she was very important to him? Searching for the solution, waiting online, quite urgent...
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" The Rise of the Literature World " was a novel about urban life written by the author, a romantic scholar. The general plot of this novel was:

This book is a classic story of recollection!
Let the protagonist bring you back to the most classic moments of our time!
" The novels, movies, and songs that once made your soul throb can be found in this book!
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Memory Corridor was a light novel written by Night Walker Z. It was a fantasy novel. The general plot of the novel was:

Memories were a person's past, a person's memories, a person's treasure. At the same time, they could also change a person. Painful memories made people struggle, happy memories made people jump for joy, and painful memories made people work hard. In the long river of memories, there were always endless stories.
Have you ever thought about what you would look like after losing all your memories?
You don't remember the happiness, sadness, and past;
You also don't remember your friends, relatives, and lovers;
You don't even remember your name, occupation, or what you've experienced.
Searching for oneself and retrieving lost memories was the theme of the Memory Corridor.
However, the process of searching was a little difficult, painful, and often accompanied by danger.
People desperately wanted to reach the end of the corridor, but what would be waiting for them at the end of the corridor?
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" Whether I know it or not, I should still be affectionate " was a light novel written by the author," Don't forget each other ". It was a doujinshi derivative novel. The general plot of this novel was:

The life-saving grace seven years ago, and the reunion seven years later, where should the two go?
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" The Return of Youth " was a modern romance novel written by the author, Bai Shi Bei Li. The general plot of this novel was:

Everything started from the first time they met eight years ago.
Those were the beautiful memories of her childhood. How happy she was, how little parting she had.
That was the three months he wanted to stay for the most, but after going through thousands of sails, he was no longer the youth he was back then.
When the two of them met again, one of them did not know each other and the other was unwilling.
If life is just like the first time, but why meet each other before?
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" My Stupid Life of Those Years " was a novel written by the author, Unless Tianhu. The general plot of this novel was:

I admit that my life was a little messy in those years. So write it down, to pay tribute to those years, and the women of those years! The new book, The Age of Advertising, had been released, and more exciting characters and lives were unfolding once again! Please read it…
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" Rebirth Entertainment: 1990 " was a novel written by the author, Junxiu Cai, about an urban and entertainment star. The general plot of the novel was:

Hello, is this the Space Administration? I was reborn, but other than the improper method of enlightenment, I don't remember what happened in the future! Did you make a mistake? Can I do it again? Waiting online! It was quite urgent!
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" There Were You in the Past " was a romantic youth-and-pain novel written by the author, Scavenger. The general plot of the novel was:

Later on, I understood that you were not a necessity for my life, nor a prerequisite for my future. There was a time when I had you on a certain road. At first, it was sweet, but I also went through the wind and rain. She had once thought that her life would lose its color once her relationship ended. In the repeated and stable life that followed, she gradually understood that you were a scenery in this movie. You were not the male lead. Neither was the best, but each was beautiful. This was probably the best of you and me.
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The book " Dying the Fleeting Years " was an ancient romance novel written by an old friend of the author. The general plot of this novel was:

When I was young, I liked the beginning of stories. A long, long time ago, there was a person in a certain place. How was he…Everything was beautiful at the beginning. The story had yet to break out of its shell. There was no time for it to develop, and we had no time to grieve.
When they first met, he whispered in her ear," My name is Wei Zhuang. Remember this name. We'll meet again in the future."
After two years of affection, she said," I won't leave you."
However, they parted in a hurry. After three years of reunion, she finally got rid of the life he had promised her.
But now I know that the flowering period has been delayed. Is it too late for us?
The human heart often couldn't withstand the heat of the world, and everything had variables.
He could guess the beginning of the story, but he couldn't predict the ending.
We can't hide from the hand that makes clouds and rain behind the world.
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" The Story Begins in 1998 " was a reality-based novel written by The Jungle. The general plot of the novel was:

The story was set in the ten years since 1998 in China. Through the influence of different traditional cultures, it portrayed the frustrations, pursuits, joy, and love of ordinary people at that time. It told the story of several young people from ordinary small mountain villages in the south looking for cultural belonging. At the same time, it also showed the twists and turns of people's desire for a better life from the needs of material culture to the glorious road of the times.