According to my knowledge of online novels, it's rare for the female protagonist to transmigrate into a nine-year-old fool. It might just be a plot setting and not a real novel plot. If you have any other questions, I will try my best to answer them.
I recommend the following books to you: The story of the female protagonist is 9,000 years old and has power in the court. The story between her and the male protagonist is full of challenges and stakes. [Godly Doctor Huan Fei: Nine Thousand Years Old, Flirting to the End]: The identity of the female protagonist became a mystery, and the complicated relationship between her and Nine Thousand Years Old was a novel that traveled through time. "Di Daughter Jinghua: Ace Eunuch Concubine": The female protagonist is a modern ability user who transmigrated into the body of a miserable Di daughter, and participated in the conspiracy and love together with the nine thousand years old. "The Empress is enchanting: State Preceptor, be good!" It was a love story between the female protagonist, Jiu Qiansui, who was disguised as a man, and the sage-like state preceptor. "Dressed as a 9,000-year-old Palm Beauty": The female protagonist, Sang Yu, clings to the thigh of the first villain in the book, Dong Han Jiu Qiansui, and uses her ability to predict the future to start a series of stories with Jiu Qiansui. I hope you like my recommendation. Muah ~
The female protagonist had transmigrated to a child who was only nine, twelve, or thirteen years old. She was capable of both literature and martial arts, and there was a strange scar on her forehead. This plot would usually appear in time-travel novels or fantasy novels where the female protagonist obtained unusual abilities through time-travel and displayed extraordinary talent and strength in the ancient world.
If the female lead transmigrated to a novel she was reading, she might find herself the female lead of the novel. She might start to be curious about this strange world and begin to explore this new identity and role. She might meet all kinds of characters, including the male lead, the villain, and other supporting characters. These characters would have an impact on the female lead's life. In this new identity and role, the female protagonist might experience various adventures and challenges, and at the same time, she might gain a lot of precious experience and growth.
If the female lead transmigrated to a novel she was reading, she might find herself becoming the female lead of that novel. In this case, she might start to explore this new world and encounter all kinds of characters and plots. She might find that this novel was very similar to the story she had imagined, and she might also find that it was very different from her own life. After transmigrating, the heroine might face various challenges and difficulties, but she would also grow and become stronger in the process.
The female lead had transmigrated to a novel she was reading and became the female lead in that novel.
The title of the novel was " Saitama's Two-Dimensional Journey."
😋I recommend a novel to you called "What Should I Do When I Transmigrate into the Last God in the World?" The female protagonist, Leng Li, became a baby after transmigrating. Knowing that she was the last god born in the Divine Realm, she began her adventure. It was not exactly the same as the novel described in the question, but there was also a plot where the female protagonist became a baby. I hope you like my recommendation, Mwah ~😗
I recommend the two novels,"The Story of a Family Reborn in the Garden" and "The Ruffian Concubine: Provoking the Prince of Liang Bo", to you. In these two novels, the female lead's age after transmigrating is no more than five years old, which meets your requirements. I hope you like my recommendation. Muah ~
Old Nine Gates was the author of a Chinese web novel. The novel tells the story of the battle between the Nine Gates Admiral Wang Zhi, the court officials, and the local forces at the end of the Ming Dynasty. The plot of the novel is complicated and the characters are full. It has high literary value.
I need more context to answer your question. Can you tell me what kind of novel you want to read? Also, what theme or plot do you want this novel to have? I will do my best to help you.