Ji Hye and Soo kyung are friends who have a crush on the same boy: Sang Min. Soo kyung asks Ji hye to write love letters to Sang Min and wins him over. All the while it was Ji hye's love poured out on paper. But fate will bring them together as Ji Hye finds out about her mother's own love story. Summer 1968: Joon Ha has a summer romance with a girl Joo Hee. Their one day outing causes Joo Hee to leave and end the romance. Joon ha once again find this love when his friend asks him to write a love letter to a girl, which happens to be Joo hee.