At the beginning of the second year of high school, the introverted and sensitive Lin Xingyu transferred to the prestigious Wutong Lane Middle School due to her parents' job transfer. This campus, surrounded by tall plane trees, felt strange and alienated to her. She was like a forgotten star, out of place in the new class. The ups and downs in her grades and the alienation of her classmates made her even more taciturn.
Jiang Yu, the top student in the class, always keeps to himself and has indifferent eyes, but he calmly lends a helping hand to Lin Xingyu many times when he is in trouble. In a chance encounter on the rooftop, Lin Xingyu discovered Jiang Yu's softness beneath her seemingly cold appearance, and Jiang Yu also saw her tenacity hidden behind her low self-esteem.
As the two people interact more and more, they gradually enter each other's world and reveal the secrets in their hearts: Lin Xingyu has been living in the shadow of the departure of his past friends, while Jiang Yu is burdened with the high expectations of his family and feels depressed. At the same time, the careless squad leader Xia Wan and the passionate sports student Chen Yang also joined their lives. On the campus of Wutong Lane, a group of teenagers faced academic challenges, solved interpersonal misunderstandings, and healed their inner scars together.
In the days when the sycamore leaves fell and grew again, they went from being strangers to each other and cherishing each other. They used their youthful enthusiasm and sincerity to light up each other's path forward, and they also understood the meaning of growth. They are never alone.
