Promise [ Re-Make ]

Kim is studying at the Seoul National University and wanted to be a professional in Architecture one day. She was always one of the top students in her class and then she met this guy a rich boy who is her childhood best friend. They didn't see each other after what happened to their parents. They made a promise after many years they met again and try to regain they're friendship together and unexpected love. Will they still keep their promise until the end?