First and foremost, this ONTAENG fic is dedicated to my little sister who shipped this pair...   I've come up with this story while listening to TaeYeon's & KangTa's "7989".   I know in reality there's no "10-year" difference between these two.  :)   Hope you look forward for this story..     *** Author's Note***   I originally planned this to be a 10-chapter fanfic, but I choose to make i