After Transmigrating Into a Book, I Became the Short-Lived Cannon Fodder Used as a Lab Rat

[Transmigrate into a book + devoted to each other + sweet romance + domineering CEO + powerful partners + original heroine's harem]

Hua Ning transmigrates into the book as a doomed cannon-fodder supporting character who dies young. All she wants is to stay alive.

She enters a fake engagement with Yan Jue, her fiancé by agreement.

Then he says, “Hua Ning, I like you.”

Hua Ning: “...”

She negotiates a partnership with Lawyer Baili, one of the original heroine's harem, and tells her best friend to steal him away: “Go after him with confidence.”

She also pays a high price for a “health check card” from Doctor Zhuang, another member of the original heroine's harem. Her plan is simply to be kind and build a good relationship.

Just as she's wondering how to get on good terms with Mr. Wen, another member of the harem, the original heroine makes her move with the harem in tow. A mysterious figure labels Hua Ning an “experimental subject”...

Hua Ning chuckles. “Good. You've managed to make me angry.”