Transmigrate into a book as an ordinary passerby + sweet romance + married first, fall in love later + happy ending
Yu Qinghuan transmigrated into a book. She wasn't the heroine, the unattainable dream girl, or the evil supporting character. She was an anonymous passerby. To support her eldest younger sister's scientific research, she became one of the first test subjects, entering an old-fashioned tragic romance novel to change the original story's ending, in which the devoted second male lead was destined to die.
The bad news: a System malfunction made her transmigrate as a newborn baby.
The good news: she was the only girl born to the Jiangnan Yu family in nearly fifty years. She was doted on by everyone from the start.
P.S. There is no System in the full story and no golden finger. The heroine isn't controlled by the plot. There is just a little angst to sweeten the romance, but the whole story is sweet. Both leads know how to speak their minds, and there are no misunderstandings or betrayals, so enjoy with confidence.
I have read similar stories before, but this novel is quite interesting. I like the heroine. I hope the following stories will become more and more exciting. Good luck to the author!!!!