"The Sinking Code: Ten Years of Rusty Time Lag" is an epic long-distance love story that spans ten years. It uses computer code and building rust as warp and weft to weave the mismatched lives of a programmer girl and a construction worker boy. Lin Xia is looking for the future in the binary ocean, Lu Chen is forging time in the steel forest, and the bronze tiger talisman in the old bookstore hides the secret of welding ten years of scraps - he used the construction site diary to write love letters, and she used the code to decipher his cough. When the rust peels off to reveal the QR code, what emerges is not only the tuition transfer record, but also the eternal vows written with numbers and scars when two souls fell in the clouds.