Li Mo and An Delie, who have very different personalities, become close friends because of soccer, but an accident makes Andrei disappear from Li Mo's memory along with his youthful past. Years later, Li Mo and An Delie “reunite” on the way to his father's funeral, and a period of dusty memories are gradually unveiled. ......

根据新海诚的经典动画作品《秒速5厘米》改编。
转学生小鹿来到了新的学校，在偶然的机会遇到了一个女孩，两人成为互诉心事互相鼓励的朋友，随着了解更多，发现两人竟然有着奇妙的关系渊源，一段发生 在樱花下的美好故事就此展开了。