College sweethearts Seok-yoon and Jin-won marry after graduation. Seok-yoon, gentle and cautious, lands a job designing children's toys. His wife Jin-won is physically very weak but strong-willed and the two love each other very much. Jin-won, who lost her parents when she was very young, want nothing more than to become a mother. However, despite their efforts they are unsuccessful. Jin-won's craving for a child becomes an obsession and Seok-yoon begins to lose his patience with his wife's extreme behavior. Finally, in what seems like a miracle, the two conceive a child. Their joy in life and love for each other grow along with the baby. But that miracle of happiness proves to be short lived....