Chloe James, a vibrant freelance event planner, is having the worst week of her life. Her biggest client just vanished, leaving her business teetering on the brink. Then, a lifeline appears: a massive charity gala for Stone Industries, a corporate behemoth. The catch? The CEO is Declan Stone, notorious billionaire, unyielding perfectionist, and the aloof older brother of her best friend’s husband. And in the Stone family, there’s an unspoken rule: Thou Shalt Not Date a Stone.

From their first explosive meeting, sparks fly, not just of creative friction, but of a dangerous, undeniable chemistry. Declan, a man hardened by a tragic past, finds himself unexpectedly drawn to Chloe’s fiery spirit and unwavering honesty. Chloe, wary after past heartbreaks, fights against the magnetic pull of a man known for fleeting affairs.

As they navigate the high-stakes world of gala planning, their professional battles slowly give way to stolen glances, hushed conversations, and a powerful, secret connection. But when their forbidden romance is spectacularly exposed at the gala, it ignites a public scandal that threatens to unravel everything they’ve built, Chloe’s business, Declan’s legacy, and the very foundation of their burgeoning love.

Faced with an impossible ultimatum from his board, Declan must choose: the empire he built, or the woman who finally broke through his walls. But Declan Stone doesn't back down from a challenge. In a bold, public declaration, he risks it all, proving that true love defies expectations and rewrites every rule.

The Unofficial Rulebook is a captivating journey of passion, vulnerability, and unwavering commitment. It’s a story about two people who dared to break the rules, confronted their pasts, and found a fierce, undeniable love that proved to be their ultimate triumph.