This is a story about redemption and loss. In the summer of the second year of high school when cicadas were chirping, Jiang Yu, a transfer student who was like an island, met his classmate Lin Wanxing, who was like the sun. Lin Wanxing used her warmth to melt the ice in Jiang Yu's heart little by little, making him feel the kindness of the world again. The appearance of Jiang Yu was like a distant but bright star, lighting up a corner of Lin Wanxing's inferior world and allowing her to see a different scenery.
Their affection grew quietly during countless evening self-study sessions side by side, a shared pair of headphones, and tacit explanations of math problems. However, the pressure of the college entrance examination, the shadow of the past (Jiang Yu's former best friend is also a "White Moonlight" figure in Lin Wanxing's eyes), and deep-seated inferiority, turned a carefully prepared confession into a huge misunderstanding. On the day of graduation, they went in opposite directions, one went overseas and the other stayed at home, burying their most sincere love in that summer.
A few years later, Lin Wanxing became a well-known illustrator, while Jiang Yu was already a technological upstart. An unexpected collaboration reunites them. The misunderstandings and regrets of the past were uncovered layer by layer, and they discovered that each other was the brightest but also the most painful white moonlight in each other's youth. This time, can they cross the gap of time and repair the missed youth?
