The female lead is cunning and is deemed a "sociopath" (though this is probably not the case as hinted in the first 2 episodes). The female lead is smart, funny, "antisocial" and charming when she needs to be. The male lead is a top-lawyer who is described to have a condition where he is highly empathetic. However, while this is true, it seems this "empathy" is more so of a selective nature, especially towards the female lead. He and the female lead have a childhood connection, that influences the male lead to help the female lead. Essentially the show is about the female lead being falsely accused of the murder of her parents, and the male lead becomes her lawyer to help prove her innocent. The "good boy" "bad girl" trope is not common in kdramas so I recommend everyone should give this drama a try.