Chu Xi is a imaginative perfectionist who wants to become a famous novelist. There is a childhood secret that has been haunting her, making her frustrated again and again. She is determined to get rid of her innate melancholy, become positive and optimistic, and live a happier life. After meeting a mysterious person, and in a series of ridiculous but thought-provoking experiences, Chu Xi's world has undergone earth-shaking changes. She regained those beautiful longings, finally cracked the secret of her childhood, and finally walked step by step towards the warm and spring-like life she expected, filled with the fragrance of lemons, covered with golden-green grass carpets, and where light and shadow can be seen through her fingertips...