The brass box unlocks the key to time and space, and Lin Wan, an ordinary girl, transforms into a "story ferry" and breaks into the world of the story as a character in the book. She accumulates warmth with companionship and help, and helps the frustrated protagonist rewrite regrets and embrace perfection. In the end, she unlocks the ultimate authority, returns to the past to make up for her own regrets, and reunites with her best friend. In the end, she can freely travel around the world, turning the brass box into a bracelet, continue to write a chapter of healing across time and space, and have a perfect life of her own.
Purpose: Healing