Twins Nueng and Song were separated after their parents divorced — Nueng was raised in a troubled home with her mother and stepfather, while Song grew up in a loving, stable environment with their aunt and uncle. Their lives shaped them into opposites: Nueng is bold, reckless, and flirty, while Song is kind, innocent, and well-mannered.

When Nueng gets into trouble with At, a sharp police officer, he begins to suspect her of more than just mischief. Things spiral when he mistakes Song — his brother's fianc├⌐e — for Nueng. As Nueng stirs up more chaos, Song takes the fall, and At finds himself caught between suspicion, truth, and an unexpected connection.