Falling flower season. Tell an extraordinary story. She, Chuya. He was an ordinary senior high school student, but because of a new Chinese studies teacher, his originally beautiful life changed. Past life memories are recalled again. "I'm sorry, I'm dead. I can no longer accompany you until old age." "You said that when I return in triumph, you will stay with me until old age and watch the flowers bloom and fall together." "I'm sorry..." What happened? What happened? Please read the novel.