Su Wang was admitted to Mingcheng University. At the freshman opening ceremony, she accidentally discovered that the representative of the physics department was Lu Yan, who had attracted her heart in high school. Memories from three years ago emerged—she fainted due to hypoglycemia during a city-wide entrance exam in her second year of high school. It was a stranger, Lu Yan, who handed her sugar and warm water. The moment he looked down at her, the sun fell on his eyelashes, which became a secret she kept in her heart.
- Su Wang deliberately avoided Lu Yan, but he always met Lu Yan due to various coincidences: he was in the same class in elective courses, sitting next to him in the library, and sharing equipment in the laboratory. While pretending not to care, she secretly collected his preferences (for example, he only drank a certain brand of mineral water and would tap on the table when solving physics problems).
- Lu Yan appeared by Su Wan's side seemingly by accident: helping her pick up the dropped books, reminding her of the deadlines for her elective coursework, and bringing her a cup of hot coffee "on the way" when she stayed up late to work on a project. Su Wu thought it was a coincidence, but his heart kept tugging.
