Everyone carries secrets from birth. When you haven't grown up enough to open your eyes and see the world, what did you do in your mother's arms? No one knows, including yourself! However, there are some secrets, like water stains spread out in the sun, transpiration, evaporation, and dispersion in the air. Everyone can feel it and breathe it. This is a secret that everyone knows.
Gu Huanlan has a secret that no one knows. She likes Ye Zi'an. From the first bloom of love to the bud, from the golden age to the peach and plum years. She had been in love with him for her whole youth, and the point of direct sunlight had wandered past the Tropic of Cancer five times. This is a girl's biggest secret. She thought it was a secret that would never be known.