Son Chaeyoung, C.E.O of the famous Soul Music MV Brand, is an isolated, quiet woman. She devoted herself to music and her company. Her relationship with her dad and brother is not good and the only person she could lay on, her mom died at an early age. Since then she focused on making career and kept herself busy to numb her loneliness. But now she has everything except a person she could trust with her heart. Everyone thinks her heartless, cold but she just can't express emotions; those buried somewhere deep inside her. Myoi Mina, A content creator, is a cheerful and creative-minded person. She belongs to a middle-class family and is the only child of her parents. Because of her dad's sudden illness, they are facing a financial problem and part-time jobs are not enough to bear the hospital treatment. So she wants a permanent high-paid job at any term. For her, love is precious and destined. In a world of millions of people, someone special is made for her. Who will love her unconditionally; whom she can call her world. What will happen if they met each other? Can Mina understand Chaeyoung? Or will she also think her heartless? Can she be her cure or not?