When the 25-year-old talented painter Yan Xia bumped into the 35-year-old architect Cheng Dong in a heavy rain, his valuable suit was dyed with paint, but he painted the most beautiful accident of fate.
He recognized the demolished building in her sketchbook - it was his design debut ten years ago; but she didn't know that this industry leader had been silently watching her growth trajectory on countless occasions for ten years.
The "Urban Memory" project closely connects two lonely hearts: she paints paintings of old buildings that are about to disappear, and he rediscovers his lost passion under the tip of her pen. When the 15-year age difference becomes the focus of doubt from the outside world, and when the photo of the painting competition ten years ago reveals an amazing fate, they will finally understand that true love will never be blocked by time, and some people are destined to meet at a certain bend in the long river of life.
This is a romantic encounter about architecture and painting, time and memory. The ten-year period is their age difference; the hundred-year period is their promise written under the stars.