Twelve years ago, on a rainy night, she met that cold-hearted young man in the library of her old house on the outskirts of Beijing. When he demonstrated how to cut medicine for her, the blade of the knife was slightly deflected, leaving a crescent-shaped scar on his wrist. She panicked to stop the bleeding, and he said, "This is the mark of knowledge."
See you again twelve years later. He is the freshman representative of Peking University, the mathematical genius Gu Yanci, and the light scar on his wrist is still there. And she, Lu Qingran, was a low-key science top student in the medical school, and she buried all her fears deep in her heart. At the opening ceremony, a bright and flamboyant girl broke into the auditorium, took his arm in public and called him "boyfriend"——
The whole campus was in an uproar. She sat quietly in the audience, her fingertips cold.
Until they reunited for a scientific research project. In the laboratory late at night, there are complex formulas on the whiteboard, cells beating under the microscope, and those silent stares that only each other can understand. She discovered the abnormal peaks hidden in the data, and he saw the light that never went out under her rationality.
That scar never faded, just like she never forgot.
And the ginkgo tree bears fruit every year, waiting for a reunion that spans twelve years——
Beginning in the rain of insects, eternity in the theorem of fixed point.
