In a key high school, Lin Xingmian, an introverted girl who has a dream of painting, meets Jiang Yi, a sunny young man who is burdened with the expectations of his family and loves astronomy. Accompanied by their best friend Xia Zhi and best friend Shen Yizhou, the four of them redeemed each other amidst academic pressure and family ties, fought against prejudice, and held on to their love. From the glimmer of first acquaintance on campus to the sprinting side by side on the way to prepare for the exam, they completed their self-growth in the collision of youth, reconciled with their original families, harvested pure friendship and passionate love, and finally went to their respective dreams and distances.