One day during the rehearsal of a play at school, Jae-kyung notices that the play is resembles the incident that had happened in his life. He recalls a childhood memory of being at the orphanage at Gangwon, where he had met Eun-hwan and had made a promise to return in ten days. He finds Eun-hwan and tells her that he did not remember her or his promise because his parents had died in a car accident on that same day and his memories were thus erased. He tells her he loves her and they kiss.
The day of the play comes and Jae-kyung asks his classmate to trade places as a favour; him as the Colonel rather than the maid. He goes to Eun-hwan's side and she asks him if he could put on the socks he bought her earlier. While they are dancing, she feels a sudden pain and goes backstage much to Jae-kyung's worry. However, she returns. Eun-hwan's mother has also come to see the show.