Chen Yan, a second-year high school transfer student, is not good at words and has a collection of sketches of monitor Lin Zhixia in his pocket. Lin Zhixia looks like a sunshine, but she is always depressed due to her sick mother, so she always brings an extra umbrella to wait on rainy days. Qingmei Zhouyu silently pays for her mother's medical expenses, sports student Zhao quietly collects her discarded old umbrellas, and art club Su Rui promotes the intersection of the two. Everyone gradually uncovered the past: Chen Yan's father was once an art student of Lin's mother. He passed away in an accident many years ago. The rainy days, paintings and old umbrellas of the two generations are entangled with regret and redemption. In the end, the two overcame the knot in their hearts, learned to face the pain, and caught the tenderness that had been hidden for many years in the continuous rain.
