Jeonha, Igeon Geunyang Soseoriragoyo

Marianne Leblanc, the daughter of a countess with zero dating experience, secretly writes romance novels with aplomb.

"Isn't this author getting a little boring? The clichés are obvious. It's unrealistic."

One day, shocked by a reader's harsh criticism, she attends a notorious masquerade ball in hopes of writing a truly "adult" romance. However, she finds herself under a strangely hypnotic spell that makes her body feel hot and fuzzy. And the person she nearly causes trouble with is none other than the crown prince, Lucius?! Even his kiss with Marianne has the spell transferred to him. There are two ways to break the spell: wait for the effects to wear off with small touches. Or merge and end it all in one fell swoop! Amidst her volatile cohabitation with the crown prince, will Marianne be able to create a realistic romance?

(Source: Kakaopage, translated)