Gu Yanshen had been frail since childhood and had been patient and restrained all his life. All his tenderness and affection were secretly promised to Xu Zhixian, a young man who played the piano in the old alley. From listening to the piano in the attic to guarding her day and night, he hid his love in every meal of warm water, every tidying up, and every silent gaze, never daring to show it at all. In order to prevent Xu Zhixian from witnessing his withering away, he endured the pain and walked away, enduring the pain and missing alone in a foreign land. Xu Zhixian was enjoying all the glory, but he spent all his energy searching for a doctor and a missing person. During a recital, the reflection of the piano and the strings in the air reminded him of that person's tenderness. It wasn't until he was sorting out his belongings that he realized that Gu Yanshen had already silently carried everything for him throughout his life and gave him all the light in his life. Looking at each other so close, but separated at the end of the world, only the sound of the piano and deep love will never end.
Concept: The sound of the piano knows my heart, there are two male protagonists