Transmigrated Into a Book: My Stepbrothers Spoil Me After Mom Remarries

[Transmigrate into a book + 1980s + beloved by the whole family + secret identities + strong heroine + strengthening the nation] Si Nuan was a researcher who had studied straight through from her bachelor's to her master's degree and returned from overseas. She died suddenly after working overtime for too long, then transmigrated into the body of a pitiful young girl. Her father had struck it rich and was about to divorce her mother. There were five siblings. Her father thought she was too frail, so he left her with her mother when she remarried. Everyone said she was sickly and weak, a burden to the family. Her own family looked down on her, let alone her stepfather and his family. They would probably kick her out before long. A country bumpkin who had remarried with her mother arrived at the military compound. Rumor had it that she was not only weak and sickly, but also uneducated, unmotivated, and wildly ambitious. At first, everyone went out of their way to avoid her, afraid she'd latch on to them. When Si Nuan opened her eyes, she had become that despised country girl. But who was Si Nuan? She could practice medicine, speak more than ten foreign languages, and operate all kinds of advanced specialized machinery. When she took the college entrance exam, she made a spectacular debut and became the top scorer in the country. The president of Qingbei personally invited her to enroll. An international interpreter specially invited her to help receive honored foreign guests. A top national research professor sought her advice. A Qingbei physics professor humbly asked her for guidance. A master of traditional medicine wanted to take her as an apprentice. She woke her eldest brother, a regimental commander, from an unconscious state after he was injured. His leg was injured and needed to be amputated? She performed the surgery herself and got him back on his feet. She helped her second brother, a physicist, solve problems. She taught her third brother, a surgical department director, medicine hand over hand, helping him save lives. She helped her fourth brother become an outstanding entrepreneur. Her stepfather's family prospered more and more. The whole family pampered her like a little princess. Her biological father and his family, meanwhile, were consumed with regret, wishing they could undo the past!