Find a novel about the female protagonist's rebirth

She had a brother. Her brother had a few friends (best friends), and the male lead was one of them. However, their relationship was only established in the second half of the relationship.
Chapter 1: The female protagonist jumped several grades from a young age. She caught up with her brother and his friends in middle school or high school. Later, she went abroad to study. Her brother seemed to have gone abroad as well. She couldn't remember the day of graduation or the day after. She and the male protagonist were abroad for fun. They registered at the foreign embassy without telling their family. They had to call each other and get scolded. After that, they gave birth to a pair of twins. 2. In the end, the female protagonist returned to her alma mater (university) to teach when she was around 20 years old. She seemed to be a professor. Her colleagues pursued her and introduced her to others. In the end, she went to her brother's office to look for him. Her brother's new secretary didn't know her and asked him who he was. This new secretary became her sister-in-law. The second and third points were only briefly introduced in the last chapter or two.

Answer 1

There were many popular types of rebirth novels that could be used as reference:
"Battle Through the Heavens"-Heavenly Silkworm Potato: It tells the story of a youth's growth. He was reborn in an accident and stepped onto the path of cultivation again, eventually becoming a powerful Dou Di.
2 " Full-time Expert "-Butterfly Blue: It tells the story of a retired professional player who returned to the game circle after retirement. He showed great strength and quick-witted reactions in the game and was loved by players.
[3]" Lord Snow Eagle "-Outsiders: It tells the story of a female warrior who became a powerful lord after crossing over to another world. She led her team to fight in all directions and displayed amazing strength.
4《Douluo Continent》-Tang Family's Three Young Masters: tells the story of a Spirit Master's world protagonist Tang San who was reborn in an accident and once again set foot on the road of cultivation, becoming a powerful Spirit Master and displaying astonishing strength in the world.
These are some of the more popular female protagonist's rebirth novels that you can choose to read according to your preferences.