-At the airport-

I arrived to Seoul 

Someone bumped me and made me felt with my things 

That person helped me to stood up and helped me to picked up the things.

I was looking down 

"Sorry" he said. 

"It's Okay. Thank You" I said finally looking at him

'He seems familiar.. but who is he?' I thought

'This girl seems like I know her...' the guy thought 

"M-may I know your name ?' I said nervously 

"Oh Sehun, Nice to meet you" He said

'O-oh.. S-sehun...' My eyes started watering 

"OH! Why you are crying!? Are you hurt!?" He asked worried 

"I-it's Nothing.." I said

"Are you sure?" He asked again to made sure

"Yea" I said flashing a smile

"Well, I gotta go.." I said 

"Okay" he said 

When I was a little far from him

"Wait!" He shouted

'Does he remember me?' I looked back and he was running where I was.

"Huh.. What is your name?" He asked

"Hyun ____" I said 

I looked at his necklace, it was the same that I have..

Flashback 

10years ago

Sehun and you were childhood friends

One day, Sehun and you were separated cuz your family said that you had to go to China to study, you and Sehun were so sad and he bought a gift for the two. It was a necklace (like couple necklaces) 

"Gomawo, Oppa" I said crying

"____-ah Don't cry~ It's Okay ^^ We will meet again, okay?" He said trying to