When can I see you again?

This is a story about two children who grew up to be best friends in the same village. One fancies the other but is destined to forget about him. One moves away to the big city and is never herd of again. 15 years later they both meet through a book that they read to eachother when they were 6. Will they remember eachother or will they have to re-build their relationship all over again?