Min Eun-hoo, general manager of JK Group. Handsome looks, wealth, and a strong future! He had everything, and at some point, the thought of an unknown woman begin to ring in his mind. while she was complaining of pain not knowing who the biggest hindrance in her life was, there was a woman she encountered like fate. The candidate who came to JK on the day of the interview to hire his assistant, Seo-yoon Ha! Director Min Eun-hoo, who can hear the sound of only one person’s heart, and Ha Seo-yoon, the owner of the sound, fall in love as if attracted to them!