*Marry her quick, Dada.* Chan chuckled at his son's innocence. - BangChan, the CEO of a renowned company, is a devoted father to his mute son, Junghoon. After the tragic death of his wife, BangChan has refused to marry again, honoring her memory with unwavering loyalty. Lee Y/N, a compassionate child psychologist who, by chance, encounters Junghoon in a troubling situation. Driven by her instinct to help, Y/N assists Junghoon, earning his trust and affection. Recognizing his son's unique bond with Y/N, BangChan agrees to marry her, despite his belief that he can never truly fall in love again. Can BangChan's heart ever open to Y/N, or will his past forever overshadow their future?