I Wanted to Leave, but They Won't Let Go of Me!

(Includes short skits unrelated to the plot)

Yun Feifei just can't make sense of it. She suddenly learns that she's a villainess, but as far as she knows, she hasn't done anything horrifically evil.

The worst part is that whenever she meets the protagonists, she can't control herself from saying the lines from the original story.

Yun Feifei: So what if your spiritual roots are good? You still have no mom or dad, while I'm the eldest daughter of the Yun family. (Not really.)

Everyone: Yun Feifei, you're awful!

No angst, no angst, no angst!

The original heroine has her identity taken over by someone who transmigrated at first, but she'll return later, so you could say the original heroine isn't vilified.

A naive young man, adopted as a child but only ever used;

A junior brother of noble birth, kidnapped as a child and even tortured;

A once cheerful and outgoing Immortal Venerable, now cold and aloof after witnessing the person he loved die because he wasn't strong enough to protect them;

A volatile Demon Venerable who loves his younger brother, never knew a father's love, and is as stubborn as they come;

A perverted Demon Venerable who went from dragon slayer to dragon;

A former Demon Venerable who has always been insane;

(Everyone but the last one is sexually pure.)

The original novel was titled I'm Not the Junior Sister.