Looking for a long-ago romance novel, the woman seems to be a killer, leaving a child for the man, and the man is a tycoon?

According to your description, the romance novel you are looking for may be Billions of Stars Are Not as Bright as You, also known as the first pet of wealth and power: the wife is super fierce, written by Shi Shengqing Huan.

Introduction to the novel:

Su Wen, the female host, was originally a top agent in the organization, but she fell in love with Feng Xiao, the male host, when she was on a mission. For that man, she gave up everything and even gave birth to a child for him. But the man misunderstood her and thought she betrayed him, so he kicked her out of the house.

Five years later, Su Wen came back with her son, and she vowed to get back what belonged to her. She approached the man step by step and finally exposed his plot. The man realized that he was wrong and began to pursue her.

After some twists and turns, the man and the woman finally settled their differences and the three of them lived happily together.

The highlights of this novel:

Sue, the hostess, is warm, beautiful and quiet, with extraordinary skills and superior IQ.

The host sealed the owl with a cold belly and a black belly. He is overbearing and single-minded to the hostess.

The plot of the novel is ups and downs, gripping and fascinating, which makes people want to stop.

The novel is exquisite in writing and emotional description, which makes people immersive.

If you like reading the articles of the chairmen of the giants, then "Billions of stars are not as bright as you" is definitely worth reading.