Min Eunhoo, the general manager of JK Group, with handsome looks, wealth, and a strong future! He had everything, and at some point, the thought of an unknown woman began to ring in his mind. While he was complaining of not knowing who the biggest hindrance in his life was, he encountered a woman, as if fate knocked his door: the candidate who came to JK on the day of the interview to hire as his assistant, Ha Seoyoon! Director Min Eunhoo, who can hear the sound of only one person’s heart, and Ha Seoyoon, the owner of that voice, become attracted to him and falls in love!