Jeonghan is Seungcheol's younger brother, even though they are brothers, their characters are very opposite, Jeonghan is a cheerful, gentle and romantic man, Meanwhile, Seungcheol is a man who is cold and indifferent, but full of affection in his own way And you are Seungcheol's secretary and Jeonghan's best friend since college, have feelings for each other but haven't been able to be together because of your doubts about Jeonghan.