In the summer when he was fifteen years old, Xu Nuo moved to the old city with his parents. While sketching by the Lihua River, he bumped into Qin Yang, a young man who was climbing a tree after being chased by a dog. A jade pendant engraved with the word "nuo" and a small silver bracelet revealed the promise made by childhood sweethearts six years ago. From their first meeting on the river embankment to their companionship on campus, from ignorance to running towards each other, they met the right person at the most beautiful age. This is a story about waiting and reunion, youth and growth - some promises are worth a lifetime to fulfill.
