In the mulberry garden where frost has fallen, Qi Yanci encounters the cold girl Xia Sangye and spends a gentle autumn together.
But at the end of autumn, she disappeared out of thin air, and no one in the city knew her trace.
Relatives, friends, and everyone say that his imagination is crazy, and only Mulberry Forest holds the secret of the spiritual race's fate.
Since then, every late autumn, he has been waiting alone in the empty forest for half his life. When they meet again in autumn, it will be difficult to settle the business.
Intention: A reunion that only lasts in autumn has trapped him for half his life. Everyone laughs at him for being crazy, expressing his fatalistic obsession and endless sadness that he can never get what he wants.