"The Distance Between Light and Shadow" tells the inspirational and emotional story between college student Lin Ze and mathematics teacher Su Yao. Lin Ze was admitted to the Mathematics Department of University A with a score of 658. When he first met Su Yao in his freshman year, he was embarrassed in class due to his weak foundation and received her strict guidance and encouragement. She handed him a basic textbook and ignited his desire to learn. After that, Lin Ze studied hard under Su Yao's guidance, and his grades rose from the bottom to the middle, and he gradually developed feelings for her that went beyond the relationship between teacher and student. Before his sophomore year, he wrote a confession of his secret love on his handout but never said it out loud. During four years of college, he studied hard and won competition awards. When he graduated, he chose to become a teaching assistant and returned to University A to meet Su Yao again. The two get along as colleagues. Lin Ze discovers that Su Yao is still single, and their relationship quietly heats up. Half a year later, he confessed his feelings, Su Yao accepted after hesitation, and the two began to date. Their relationship deepens in their peaceful daily lives. They share meals on weekends, share umbrellas on rainy days, and teach each other. They become each other's light. In the end, Lin Ze and Su Yao stood side by side on the podium, passing on this light to more students, completing the journey of growth from confusion to determination, from secret love to companionship.
