"I know it's crazy, but I made unforgettable promises at a very young age- with the boy who was my bestfriend, my first love and I will never break it until I see him again." 
                                                                                                                                                                                                                 -Kwon Yuri.

 "I know that it was such a long time ago but I still love her, I miss her. We were only little kids but my heart beated crazily when I saw her.. I always hope that one day, fate would bring us together." 
                                                                                                                                                                                                                 -Choi Minho.

“Minho.. We’ll see eachother again right? Maybe when we’re famous singers or sports stars?” Yuri asked. “We will, I pinky promise Yul.” Minho handed out his pinky and Yuri did the same. Their pinkies intertwined and soon they let go. Yuri’s mum’s car had arrived. They both knew that it was the last, at least for a long time. “Im sorry, I don’t have any present for you..” Yuri said apologetically. “Its alright, but instead, can we make another promise? When we see eachother next time, you have to be my girlfriend okay?” Minho asked. Yuri giggled and blushed, then she held out her pinky once again. “Okay.” 

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                                                                       KWON YURI

.

 A kind, caring, beautiful girl. Popular around the SM trainees, trained in SM entertainment for numerous years after being casted. Great friends with Jessica, Sooyoung and a few other girls who are also trainees like her. Very popular around the other trainees, many people have asked her out but she has rejected them all, believing that she would see his bestfriend again. Always dreamed to be either a swimmer or a famous star. She found out that becoming a swimmer would be a hard option so she becomes a trainee in SM entertainment, where all the famous artists are. Doesn't realise that the new trainee, Minho is the guy she loved when she was young. 

                                                                      CHOI MINHO.

 Warm hearted, honest person. Lives in Incheon with his family. Never been in a proper relationship so that he doesn't break his promise. Always dreamed to be a soccer player until his father thought that it was a very hard choice. He goes with his second option, to become a star. He passes the auditions for SM entertainment and becomes a trainee. He received strange feelings about Yuri, denies to himself that Yuri wasn't his lost childhood friend. Usually quiet around people he first meets but really he's a sweet and funny guy to be around.

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Two childhood friends gets separated however keeps unforgettable promises. They meet again, after becoming trainees however does not recognise eachother. Without knowing, they start falling in love with eachother but tries not to to keep the promises they made...

- If you dont really understand the description, Yuri started training in SME and Minho started training a few years later but they dont realise that theyre old childhood friends but this turns into something more special-