MARCH 15,2012 Five years ago,there were a girl and boy.There names were kim dahyun and M/n manoban.They were best friends.The had a great life until m/n had to go.They never confessed their loved to each other.They both wish they could see each other again,that wish came true. OCTOBER 10,2017. They are grown adults now,they both are in groups.M/N is in BTS and dahyun is in TWICE.They meet each other again.What if m dahyun doesn't remember him,something happen in the past,that made her forget him.Will they confessed?Do they still love them?Is there a happy ending?Will she remember?