The story revolves around the innocent emotions of the protagonists Xiao Ning and Zhang Hao, from the carefree childhood to the excitement and confusion of adolescence, to the profound thinking and choices in adulthood, showing the ups and downs and deepening of their emotions. Xiao Ning and Zhang Hao met at her grandmother's house, were childhood playmates and youth confidants. Their relationship quietly changed over time. An accidental reunion rekindled their thoughts and emotions for each other in their hearts. However, the road to youth is never smooth. A photo and a misunderstanding put their relationship to the test. Through misunderstandings and explanations, they learned to trust and communicate, and their relationship became stronger. The sweetness and bitterness of adolescence explores themes of love, trust and responsibility. Through the stories of Xiao Ning and Zhang Hao, it shows how two young people face their inner struggles, how they deal with the conflict between emotion and reason, and how they find themselves in loving and being loved. It tells us that every period of time has its own unique tenderness, and true love is that in the depths of time, we can still hold hands tightly, work together to make progress, and develop towards a better future...
