I Transmigrated Into a Novel About Watching the Female Side Character Rise

A 1970s transmigration-into-a-book story, with a book within a book It all started when she confiscated a novel from her younger sister, who was in high school... If she'd known she would transmigrate into a book, she wouldn't have touched that melodramatic vintage romance full of catfights, even if you beat her to death. If transmigrating into a book was inevitable... she should have gritted her teeth and finished it, instead of reading only the first ten chapters!!! She transmigrated into a book that was itself an anti-rebirth transmigration story. The innermost book is "Lucky Little Sister, Sweet as Can Be." Its heroine is her current youngest cousin on her eldest uncle's side, the youngest girl in the family, overflowing with good fortune. The mountains send her food! The second book is "The Villainess Strikes Back." Its heroine is her own older sister, the villainess from the first book. She's the eldest girl in the family, and after being reborn, she knows what the future holds, latches onto a powerful patron, and sails smoothly to success! The third book is "Even Cannon Fodder Gets a Springtime." Its heroine is her older cousin on her second uncle's side, the cannon-fodder villainess from the second book. She's the second girl in her family, and after transmigrating into a book, she gets to enjoy the other two's drama, watch the neighbors' antics, and gains a real golden finger! As for her, she's the third girl in her family and knows nothing beyond the background setup in those ten chapters. She doesn't have a golden finger either, and in every book she's just a pitiful foil. If she had a book of her own, would it be called "The Foil Stands Up"? After observing her family in person for a few days, Ai Qiusui realized that the sisters were really not on great terms. The saying that three women make a whole drama sure is true! But now she's here! Four of them can make a table! Harmony! Tang Yuanlin glared at the author in dissatisfaction. "If I remember correctly, I'm the male lead. Don't I even get an introduction in the blurb?" Author: Um... Ai Qiusui passed by in the distance. Tang Yuanlin hurried after her. "Hey, hey, sis, wait for me! Need any help, sis?" The author spread their hands. "Well, you saw it. That's just how the male lead is." Cool, elegant beauty older sister X spirited, righteous, handsome younger brother (They're not far apart in age, but the younger-man vibe is strong.) Theme: A family should live together in harmony