The 25-year-old youth was once a genius girl and a graduate student in the Department of Mathematics of a key university. She was in her prime and newly married. However, a sudden encounter caused her to be diagnosed with the rare early-onset Alzheimer's disease, which rapidly deteriorated to the point where she was unable to take care of herself, suffered from incontinence of urine and feces, confused speech, and memory failure. Her husband Xiao Ren was overwhelmed and regarded her as a "slugger", so he abandoned her in the wilderness late one night. In the heavy rain, Fanghua huddled in the corner of the ruined temple, her consciousness blurred and her life hanging on a thread.
Yuan Jun, 45, is a wandering scavenger with a kind heart who lives alone in a thatched hut at the foot of the mountain. He accidentally discovered the unconscious Fanghua, rescued her and took good care of her. Facing this "crazy woman", he did not dislike her, but used the simplest methods - telling stories, playing old songs, cooking hot soup, and taking her to watch the sunrise - to awaken her senses bit by bit. He started with the simplest question "Do you remember mom?" And encouraged her to write down a word or a sentence with a pen. At first it was just graffiti, but then it slowly spelled out "Mom's apron is blue."
With Yuanjun's patient company, the memories of youth emerge intermittently like a glacier thawing. She began to write down fragments of her childhood. The words were so sincere and touching that they were discovered by a passing literary editor and published on the Internet, attracting attention. At the same time, her brain, under extreme stimulation and emotional arousal, finally recalled all her memories - her forgotten mathematical talent and all the injustices she suffered...