This is a love story about a young girl named Lily and a young man named Jack, who fall in love despite the disapproval of their families. They stumble upon a magical spring that grants their wish to be together forever, but soon realize that their world is not real, and Jack begins to lose his memories. Lily discovers the secret behind the spring's power and makes a sacrifice to save Jack's memories. Through her sacrifice, their love becomes stronger, and they continue to live their lives together with a deeper appreciation for each other.