Shen Yi, the warm and lovely "little sun", caught a glimpse of Zhou Zhenghao, the aloof top student in the freshman class, and fell in love at first sight. After learning about his excellence, she has always regarded him as a role model and idol. When the healing elementary school girl broke the perfectionist senior's mask of being cold on the outside and hot on the inside, she broke into his boring and ordinary life little by little, melting his stubbornness and uneasiness with her smile. He slowly opened his heart and allowed her to enter his life, making her his unique exception. Two very good people collided gently on the road of youth and growth. It turns out that love is not about who saves the other, nor who looks up to the other, but about working side by side to become a better version of ourselves. That high-spirited young man appeared in that startling glance back, so the cicadas chirped on the sycamore tree and the sunshine was particularly dazzling. The most beautiful moment in my memory is forever fixed on the tree-lined path in that afternoon, and in that most heart-pounding summer...