MTL - Last Building on Earth - Chapter 15 confusion

Modern-day girl boss Vivian transmigrated into a modern romance novel as the male lead’s stepmother, the biological mother of the three antagonists… and the male lead’s father’s lover! She remembered that the fiancee of the male lead’s father almost died in a fire and had three sons, but all of them were killed because of the conflict against the male and female leads. Shivering from the creeps she felt, she decided to leave the male lead’s father.

It was the nineties and five years before the novel’s plots began. The male lead was not a big shot, and the female lead was not yet reincarnated. Also, as the villain, her eldest son was just fourteen and not fully corrupted… The two supporting villains were not born, and there was still hope. To shake off the outcome of death and to gain the ability to protect herself, Vivian packed her bags and fled in the night, using the advantage of her transmigration to accumulate wealth, recruiting and building a financial empire using the economic crisis.

When that was done, she did not forget her children’s education. Her eldest son was a mafia boss who is crazy and self-centered, her genius second daughter was anti-social, while her youngest son provoked problems everywhere… But she would straighten them out so that they became proper modern youths! Hence, her tempestuous eldest son with an inferiority complex became a networking specialist, her autistic and quiet second daughter became a pioneer in scientific research, and her provocateur youngest son became an international star!

While she was shedding tears and rejoicing over her children’s successes, that selfish and crazy man found her:

“Are they the children you had with me?”

Vivian snorted, “The sun is still up, and you’re dreaming up fantasies already?” Did he want to take her children from her? Dream on!

A heroine dedicated to creating great wands and magic props;
A heroine dedicated to 100%(?) avoiding mischief and bad luck;
Meet George Weasley, a resourceful(?) daring, careful prankster for twenty years.
Is their collision a lose-lose or a win-win cooperation?

This is the story of Miss Ollivander, who doesn’t know the development of HP’s story, and the lovely Weasley family, George. In addition to the magical joke product and the Horcrux Deathly Hallows, how can other magical items help in the world of HP?
[I want to save all the characters I want to save]

Editing!
I reread the first few chapters over the weekend and found a lot of typos and bugs. In order not to affect your reading, I will revise a few chapters every few days. The plot will not change, but I will fix the problems raised by my friends in the comments before~ Sorry readers who have read it!
Content Tags: Anglo-American Derivatives

Search keywords: protagonists: George Weasley, Gwen Ollivander ┃ Supporting roles: Fred Weasley, Harry Potter, Ron Weasley, Hermione Granger ┃ Others: HP Doujin

One sentence introduction: If you can’t save the world, then save your brother?

Intention: fall in love with George Weasley, do scientific research, and invent. If you can participate in saving the world, accompany your boyfriend to help.

- Description from novelbuddy

After witnessing her fiancé sleeping with another woman, Su Yu got herself drunk at a bar out of sadness and rage. At the end of the night, she accidentally slept with a ‘poor scoundrel’. This poor scoundrel was stubborn, always hounding after her to take responsibility after their night together. Pei Tianlin said, “You took my first time, so you should take responsibility.”Su Yu flew into a rage. “That was my first time too!” Pei Tianlin retorted, “Then I’ll take responsibility. Let’s get married.” Su Yu was flabbergasted. “Dream on!”

She had a feeling she was being tricked by the poor scoundrel, but he didn’t want money or assets. He just wanted a marriage certificate. Su Yu gritted her teeth in anger. “It’s just a marriage certificate! Sure, let’s go get it!” When her fiancé heard that she was marrying a poor scoundrel, he kept trying to persuade her.

“Yu Yu, I know that I hurt you, but you can’t ruin yourself by marrying a poor scoundrel out of spite. If you’re willing, I can marry you.”

Su Yu scoffed. “Go marry your mother!”

Who knew that on the second day of Su Yu’s marriage to Pei Tianlin, countless jewelry pieces, diamonds, high-quality custom-made clothes, luxury cars, and deeds to extravagant manors were delivered to Su Yu. The ‘poor scoundrel’ suddenly became a domineering CEO who spoiled Su Yu to no end.

Rumor had it that Pei Corporation’s mysterious CEO, Pei Tianlin, was a germaphobe. But when Su Yu was eating grapes, he obediently extended his hand to catch the grape seeds she spat out. Rumor had it that Pei Corporation’s mysterious CEO was aloof and difficult to get close to. However, he was nothing but gentle in front of Su Yu. Rumor had it that Pei Tianlin was a fair and unbiased man. But he would break the rules just to protect his wife, Su Yu. Justice and law were nothing compare to his wife!