The Proust Effect, defined as the involuntary, sensory-induced, vivid, emotional reliving of past events. To put it simply, as long as a person smells something he has smelled before, the memory of that time will be opened.
What if the memory from that time reappears in reality?
Although she didn't know whether the converse proposition of the Proust Effect was true, even though the cafe where she met Pei Yu again three years later had a no-smoking sign posted, Maijia still definitely smelled the light blueberry nicotine of Seven Star Brand.
Purpose: Understand yourself first, then understand others