In the life of the orphan Yingmei (played by Ha Ji-won), there is such a "Uncle Long Legs": he subsidizes her tuition fees and sends her warm greetings and gifts every year. Yingmei always looks forward to meeting Uncle Long Legs and thanking him for his help. However, Uncle Long Legs is always mysteriously hidden behind her life. Yingmei, who graduated from university, entered the radio station as a screenwriter and lived in a dormitory of her former colleague. In the computer left by this old colleague, she found an unsent email. From the email, Yingmei learned that this was a touching love story. The protagonist of the story silently loved another person, and the love had never stopped for 10 years. Now, the writer is ill and will slowly lose his memory... Yingmei decided to help those kind and helpless people like Uncle Long Legs. She wanted to find her ideal person for the strange colleague. At the same time, Yingmei also met her prince charming, that is, Junhao (played by Yeon Jung-hoon), a colleague at the radio station. When the romance of the two spread, Yingmei discovered an unexpected secret...