Hong Chan-min, the CEO of South Korea's largest franchise cafe 'Coffee Cal Logics', sells over a million cups of coffee daily. In an era where the arrogance of entrepreneurs and conglomerates is rampant, his kind and righteous management style has led people to regard him as the country's top role model, gaining nationwide popularity. However, he suddenly finds himself on the verge of being embroiled in a 'scandal' with his secretary. Meanwhile, his secretary Eun-chae faces public humiliation after being slapped due to misunderstandings surrounding the scandal. Just as she is barely enduring various insults and grievances, a beautiful woman unexpectedly appears, helping her escape from the difficult situation. The identity of this woman turns out to be none other than Hong Chan-min's youngest daughter! Eun-chae is confused and at a loss as she witnesses the woman's elegant and warm demeanor towards her father's affair partner. What could the woman's true identity be?