For four years, Kool has been the loyal secretary behind one of the most powerful CEOs in the country.Tae-hyun is wealthy, brilliant, intimidating, and known for his cold personality. To him, work comes first, and he expects perfection from everyone around him. Kool has learned how to survive his impossible standards, even though her clumsy moments sometimes make her wonder how she has lasted this long.She never imagined that the man who once seemed completely unreachable would slowly become the person who understands her better than anyone else.What begins with awkward encounters, misunderstandings, jealousy, office gossip, and unexpected moments outside the company soon becomes something neither of them can ignore.But falling in love with your boss is complicated.There are people watching them, secrets waiting to surface, family expectations, old relationships, and powerful individuals who will do whatever it takes to keep them apart. As Kool and Tae-hyun move closer, they must discover whether love can survive the pressure surrounding their lives.From a strict CEO and his hardworking secretary to two people who never expected to fall in love, their journey will take them through laughter, heartbreak, family drama, jealousy, difficult choices, and unforgettable moments.Kool thought she was simply working for Tae-hyun.She never knew she was walking into the greatest love story of her life.