All of sudden, 12 flower boys transfered to Seoul Performing Art High School and captured every girls' heart in the school. And then...
 

"Hello! Nice to meet you. I'm your future fiance."
~Oh Sehun~
 
"Oops, too harsh, Sehunnie. Let me try. Annyeonghaseyo! I love you since 10 years ago!"
~Kim Jongin~
 
"..........................................."
~Lu Han~
 
"Yah, Lu Han! At least greet her........Annyeonghaseyo! Oh my god! I miss you so so so much!"
 
~Do Kyungsoo~
 
"Hello, I don't know how to tell you. But the point is you lost your memory 3 years ago and we need you to come with us. You are the heiress of Kim Industries."
~Kim Joonmyeon~
 
"Oh, come on, Joonmyeon. Let her catch a breath first, wiil you? Hey, I miss you.!!!!!! Long time no see, huh?"
~Park Chanyeol~
 
"I didn't  know after you lost your memory, you will lost your taste of fashion too. And what the hell are you wearing? Glasses? Like seriously?"
~Byun Baekhyun~
 
"Yo, what's up! Did you miss me?"
~Kim Jongdae~
 
"Well, I just want to know if you still remember me......."
~Zhang Yixing~
 
"Duh... What kind of question is that? She LOST her memory, hyung. Of course she's not remember you."
~Huang Zitao~
 
"Hey. Long time no see..."
~Wu Yifan~
 
"Welcome back, Hana.......... Err, guys? Is she still alive? I don't think she's breathing. Look, she doesn't move."
~Kim Minseok~
 
"...............................Am I dreaming?!"
~Kim Hana~