A quick moment when I was young turned into a foreshadowing that I didn't notice many years later.
Reunited in high school, Yan Yu was transformed from A to O because of Lu Jinxing, and the innocent thoughts turned into love in the day and night.
They thought their love would last forever, but it was interrupted by an accident after they entered adulthood.
Life and death pass by each other, and only when they are reunited do they realize that they have always been their only destiny.
Lu Jinxing: What to do if you fall in love with an Alpha
Yu: Lu Jinxing... Are you gay?
Concept: The first encounter is the foreshadowing, and the reunion is the ending.