In the alley when he was eight years old, Shen Xingwan was a light that illuminated Lu Yu's gloomy childhood. When they reunited in high school, she was a ballet girl with a prominent family background, talent and beauty, ranking second in her grade; he was a special admissions student who came from a humble background, and took the top spot with a two-point advantage. From discussing exercises in the library to having pear soup under the eaves on rainy nights, the young love quietly grows in getting along day and night. The two transcend the distance between clouds and mud, establish a relationship amidst the chirping of cicadas and the smell of books, and go through the entire high school years together.
When the graduation bell rang, Shen Xingwan went to another country to study finance, but Lu Yu got a place for further study in a country with a strong scientific research power. The distance of thousands of miles became a gap between the two. Lu Yu was willing to give up his beloved scientific research and follow in her footsteps, but Shen Xingwan didn't want him to sacrifice his future for her. After several attempts to persuade her to no avail, she made up her mind to break up and boarded a flight to a foreign country alone, leaving Lu Yu behind to guard a fruitless first love.
Six years later, the two unexpectedly reunited at a business summit. Shen Xingwan is a new financial upstart who has returned to China, and is still as dazzling as ever; Lu Yu has not only become a leader in the field of top scientific research, but also uncovered the mystery of his life experience - he turned out to be the heir to a wealthy family who was wrongly reported. The regrets of the past turned into obsessions in her heart. Lu Yu looked at the seemingly absent suitor beside her, jealousy surged, and he couldn't help but press forward step by step and test him frequently. Shen Xingwan's best friend took the initiative to show her kindness, but he turned a blind eye, his eyes always fixed on the figure that had worried him for six years. The old feelings have never dissipated. After the misunderstanding and entanglement, this time, Lu Yu will never let go. He wants to keep the light that illuminated his youth forever.
