He thought his world would always stay in that hot summer.
He thought that his life could only follow the established track, step by step towards the preset end point.
It wasn't until fate caused them to collide that they realized that their heart beats for more than a moment, their companionship lasts more than one journey, and our story doesn't end there.
Concept: The heartbeat and companionship in youth are never limited to the first meeting, let alone a certain page of the story.