She was originally a happy girl. Although she was abandoned when she was just born, she always had the meticulous care of her adoptive father and adoptive mother. A change in her family revealed the mystery of her life experience as an illegitimate daughter from a wealthy family. After returning home from school, she encountered her childhood sweetheart getting married and having children. After inheriting the family business, drifting in love, and ups and downs in the business, where should she go... A tribute to youth, lighting up her midsummer years.