On the first day of the second year of high school, transfer student Su Wanxing ran into Jiang Chi's arms - he was a "problem boy" known throughout the school. The collar of his school uniform was always two buttons undone, but his figure on the basketball court could make girls scream; she was a "quiet academic" who transferred to another school with a secret. Her notebook was full of formulas and she also hid unspoken timidity.
The two people, who originally had nothing in common, became bound together because of an "unexpected help": Su Wanxing helped Jiang Chi with math homework to cope with the make-up exam, and Jiang Chi blocked the harasser at the school gate for Su Wanxing. In the windy summer night, they shared the same pair of headphones to listen to old songs; on the rooftop of the teaching building, he saw the tips of her ears that turned red with anxiety when she couldn't solve a problem, and she saw the light in his eyes when he talked about his dreams.
Just as the love grew stronger, the secret of Su Wanxing's transfer came to light - she did it to avoid the rumors at her former school, and the initiator of the rumors was actually related to Jiang Chi's past. When trust collapsed, Jiang Chi proved his sincerity in clumsy but firm ways: staying up late to sort out wrong question papers, tilting his umbrella on rainy days, protecting himself in public places...
When midsummer ends and the college entrance examination approaches, they finally understand that love in youth is never an obstacle to each other, but the courage to become a better version of themselves. With Su Wanxing's encouragement, Jiang Chi was admitted to the Institute of Physical Education. Su Wanxing relied on Jiang Chi's support to enter the ideal school. When they left, they made a promise: "When the summer wind blows again next year, we will meet at the top."