~Flashback~
"Jungkookie-baby,come here." Areum called to the child who was playing by himself in the corner."Neh,eomma?" She smiled."I want you to promise something to Eomma and Appa,baby." 

"Promise?" Jungkook tilted his head."A promise is something that you must do....and when you don't then it means you're breaking a promise and breaking promises is bad because it hurts people's feelings.So I want you to promise something to Eomma and Appa okay?You can never break it no matter what happens." Jungkook nodded enthusiastically."Do you promise to always keep people happy no matter what happens?" 

"Yes!!!" 

That night,there was a tragedy wherein the young boy lost his parents but gained a promise.....to never break....."I promise,eomma and appa." He whispered as he hugged his backpack to his chest along with his bunny plushie.