A heartwarming story of a family, centered around the romance of perfectionist Ko Gyeol and clumsy Cho Eun Ae.Ko Gyeol is an architect with an arrogant attitude. There's an untold story behind his cynical attitude and biting remarks, which he can’t tell to anyone. Cho Eun Ae is a startup developer, devoted to creating a humanistic AI world. She has a bright personality with infinite positivity, even though she is mistreated at home.Meanwhile, Ko Min Ho is Ko Gyeol's older brother and works as a director in the strategic planning department at Gangsu Group. He only loves Seo Seung Ri, who works as a manager in the strategic planning department at Gangsu Group.(Source: Asianwiki)