A love caused by the "second button".
The vows of childhood sweethearts are no match for the cruelty of reality.
In the big dye vat of the entertainment industry, boys can no longer remember girls, and girls, inexplicably, become someone else's girlfriend.
However, as if destined, the two people met again and had intersections again, but no one knew whether they would be happy this time.
A strange combination of circumstances. Whether it is amnesia or intentional, the story unfolds from here.