The Real Heiress Got the Wrong Script [Book Transmigration]

Chu Ning always thought she had transmigrated into a body-substitute romance novel she had read. Gu Xuan, the childhood friend next door, was the male lead who would eventually go through hell to win back his wife.

All she had to do was diligently play a background character in the story. Once the heroine appeared to serve as his substitute, she, the nominal white moonlight, could make her exit.

But when it was finally time to leave her childhood friend's side, she discovered that she was the real daughter of the Xu family, switched at birth?!

It turned out she hadn't just transmigrated into a book. She was also Xu Ning, the real daughter set up as a foil to the fake heiress! Her ending was tragic: she wound up homeless and jumped to her death.

Chu Ning, who had gotten the wrong script, said, "I think there's still time to save this situation?"

Gu Xuan, forced to find a substitute, said, "Where do you think you're going, leaving my side?"

Fake heiress: "Big Sis, you don't hate me for taking so many things from you, do you?"

Chu Ning: "It's fine. You can't call it stealing when we were switched at birth, can you? Those things weren't mine!"

Fake heiress: "?"

Fiance: "Don't think that just because you're the Xu family's daughter, you can be with me! Even if I have to honor some betrothal made before we were born, I'd rather be with your sister."

Chu Ning: "Even better! I wish you and my sister a long and happy marriage, and lots of kids!"

Fiance: "?"

Chu Ning: "Uh, why are you biting me? Are you a dog or something?"

Gu Xuan: "I'm marking you, so you can't run away. I'm not a dog. I'm yours."

Chu Ning: "..."

A survival-instinct-challenged, laid-back heiress x an intensely possessive, devoted childhood friend

Theme: Staying by someone's side is the most enduring declaration of love.