Pinky promise

A girl and a guy meet at a Halloween party. one dressed up as a cat and one dressed up as an mouse. little did they know they would be best friends in the future almost inseparable into there high school years.

(flashback) "let's be friends forever! no matter what we will always be there for eachother" she says as she drinks a sip of her fruit punch
"o-k-a-y" he says as he talks with his mouth full of cheese balls
"pinky promise?"
"pinky promise."
(end of flashback)

But little did they know that there inseparable relationship would soon come to an end when one gets a once in a life time opportunity that they cannot resist.

"yah! don't forget me okay?" she said nudging his arm slightly.
"of course not! who could forget such an charming idot like you?" he teased
"YAH!" you punched his arm
he groaned but chuckled suddenly pulling you into a hug.
"y-yah what's wrong with you?" she said a little flustered at the sudden contact
"nothing its just I'm going to miss you is all."
" what's there to miss you'll be coming back right?"
"of course." he lied
(intercom)
"all people getting on the flight to Seoul Korea the gates are now open"
he wraps his arm around your shoulder and you both walk to his gate. he hands the lady his ticket and starts walking into the plane only to turn around and say.
"I'll send you a ticket to come to seoul to see me after I debut ok!?" he walks up to you and hooks his pinky around your "I pinky promise" after that he walks onto the plane without turning back to see you one last time.
little did she know that would be the last time she would see her childhood friend, Minghao.