The ordinary, stubborn, and hard-working life of Ai Aiyara Singhamekha (played by Santa Pongsapak), a young and passionate Thai architect, is completely turned upside down due to an unexpected traffic accident. This chaotic incident connects him directly and in the worst way possible with Gun De Castro (played by Perth Tanapon). ​Gun is a powerful, dangerous, and highly volatile businessman of Latino descent who belongs to an influential mafia syndicate and is known for being someone who never forgets a grudge.

Kim Ara has spent her whole life believing that hard work can overcome anything, that if she just pushes hard enough, the world will eventually catch up. So when she earns a scholarship to Haneul International Academy, Korea's most prestigious high school, she thinks she's finally one step closer to the future she's always dreamed of. Instead, she finds herself surrounded by wealth, power, and people who never let her forget she doesn't belong, no matter how hard she tries. Especially Kang Seojun. Cold. Brilliant. Untouchable. Or so everyone believes. As the heir to one of the most powerful families in the country, Seojun is everything Ara hates about Haneul, and somehow, the one person she can't seem to avoid no matter how hard she tries. They clash. They argue. And the more they get under each other's skin, the harder it becomes to ignore the connection quietly growing underneath all of it. But while Ara and Seojun are busy fighting their feelings, a forgotten piece of the past is quietly finding its way back to them, one neither of them saw coming. And when the truth finally comes to light, it will change everything they thought they knew about each other. A story about first love, grief, healing, and the words that stay with us long after someone is gone.