The first heartbeat and the last heartbeat in youth seem to be you.
Although they were young, the two of them had never been linked to each other in the eyes of outsiders. One day many years later, they suddenly announced that they were together. It was like a boulder thrown into the water without warning, causing a splash in the circle of friends and everyone talking about it.
If they return to their student days again, will they still choose each other as unswervingly as they do now, or will they miss each other for many years again?
Concept: The bonds of student days cannot be broken apart across time and space