The Boy I Knew

At the age of five, a little toddler named Jeon Jeongguk would head to the park every day. And every day he went, he would see another boy around his age. This boy was his best friend. Until Jeongguk had to move away from his home town.. leaving the boy.
Teenage Jeongguk had remembered the boy and how they would play in the sand in the past. This memory gave Jeongguk happiness, but yet also sadness as he knew he'd never see the boy again. Younger Jeongguk never thought of the idea to ask the other boy his name. They were just little kids.
Now of course, he wished he would've asked...