This is a story of growing up from youth to mature love. Two childhood friends, Zeyu and Chenxi, have been the closest companions since kindergarten, sharing the bits and pieces of life with each other. Gradually, their friendship quietly turns into deep love in the years of infiltration. With the arrival of puberty, Chenxi's feelings for Zeyu quietly heat up, but Zeyu never notices. After experiencing misunderstandings, alienation, and the pain of growing up, the two finally bravely come together. Faced with external pressure and their own confusion, they overcome various difficulties together and strengthen their commitment to each other. Finally, in the wedding vows, they reviewed the bits and pieces of memories from childhood to adulthood, and under the witness of relatives and friends, they walked hand in hand into the future and promised never to separate