Because the past cannot be changed, people yearn for the future deep in their hearts.
The bond that three people once fought desperately to protect has been torn apart. They give up everything just to learn the truth about that one moment in the past, and the sins hidden behind lies are revealed by their own hands.
Only then do they find themselves at a loss.
The person they had long been used to relying on is gone, and the other person they could have confided in has already forgotten them.
On a lonely road, amid familiar music, she blocks his way.
[Do you want to go back to the past?]
With a passionate kiss, he gains something irreplaceable in his life!
