Su Wan is the embodiment of the "sleepless flower" - she carries the weight of memory, but always maintains the desire for warmth and resilience; Lu Xun is the "soil" that nourishes the flower, using understanding and tenderness to make the flower sway alone to bloom freely. The story of the two revolves around "old things" and "memory". It is essentially a two-way journey between "sleepless warmth" and "picked up time". In the end, "heart flowers" are not only personal thoughts, but also hope and strength passed on to others.