A sweet, friends-to-lovers royal romance between a princess and her older brother's best friend. A forbidden, just-kisses romance with all the feels.

ELLA
A princess of Sondmark has no business crushing on her brother's best friend. My mission: fall out of love with Marc van Heyden-for sure this time. I've retired from writing overwrought fanfic about elvish princes and thrown myself into online gaming with my virtual besties. I haven't sent him a taco cat meme in almost a year. That alone deserves a freaking sobriety pin.
I might've stayed strong-if a 9.1 undersea megathrust earthquake hadn't upended everything. Suddenly, the man I'm trying to forget is half a world away on a humanitarian mission, and my self-control slips. What starts as a few harmless messages of support turns into flirty texts and late-night confessions.
Now he's back, and I have to remember what I promised my heart: fall out of love with Marc van Heyden.
For sure this time.
MARC
I'm busy running one of the country's largest tech companies, but I'm also Crown Prince Noah's oldest and most trusted friend. So when he asks me to keep his little sister-a dangerously unpredictable princess-from becoming a PR problem during a constitutional crisis, I say yes.
The catch? His sisters are strictly off-limits.
No one tests that promise like Ella. I'm supposed to ignore the way she slurps her ramen, smells like warm sugar, and looks at me over the rim of her glasses-but the effort is wearing me down. I can't think. I can't focus. And, gripped by an attraction I never asked for, I'm suddenly certain that kissing her just once would solve every problem I have.