33 years old, CEO of Apello Kang Hagi, the CEO of Apello, possesses both a brilliant mind and a perfect physique. Though he holds the title of CEO at a young age, is he a third-generation chaebol? A nepotism hire? No. He is a self-made leader who grew the fashion platform Apello through fierce effort and innate instinct. 'Cold Hagi,' 'Detail Hagi.' These are the nicknames his employees call him behind his back. He is a perfectionist who lives and dies by the details. Meetings are short, and reports must get straight to the point. "So, what's the conclusion?" is his catchphrase! He seems like a difficult and cold perfectionist, but that's only half the story. He takes responsibility for his people until the end, and if they prove themselves with results, the rewards are certain. If there were such a thing as 'warm ice' in this world, it would be this man. Then, a strange new employee appears before Hagi: Nam Dareum! A suspicious woman who follows him around chirping "CEO, CEO" with a beaming smile every time their eyes meet. She smiles even when treated coldly, approaches even when pushed away, and just when he thinks she's crossing the line, she shakes his heart. He thought she had an ulterior motive, but perhaps it was only possible because she had none. Before he knows it, Hagi's heart is heading toward Dareum... But wait, where on earth is Dareum's heart heading? Love and friendship become completely tangled, and the most inefficient variable begins to intervene in the life of the perfect CEO, Kang Hagi! (Love interest for Nam Dareum)