Lin Sui always wrote his thoughts in his letters, and there was an unbreakable pessimism hidden in his words. The wind was turbulent that day, and the letter blew to Jiang Lin's feet, and the page still carried the warmth of her fingertips. They got to know each other through letters, chatting about being distracted in class, the sunset, and their favorite things on the back of scratch paper. After Jiang Lin went to school in a neighboring city, postmarks became each other's expectations. He always said, "We'll meet in the summer," and she always drew a little sun at the end of her replies. In July, when the cicadas chirp most vigorously, the last letter comes. Lin Sui's handwriting was very light: "Thank you for passing by my rainy day. You don't have to wait any longer." Jiang Lin clutched the letter and hurried back, only to see an empty window sill - she was forever stuck in her own cloudy sky in the promised summer. The wind blew the letter paper, like what he didn't say, "I haven't shown you my summer here yet".
Concept: The youthful love framed in letters hides the regrets of one's youth, and also keeps her departed forever alive in time.