[Answer Revealed] Who is hidden in the luggage?

Dear visitors,can you guess who is in the luggage??

The person in the luggage is a female idol,you must have a really small body size in order to squeeze yourself into that small luggage,i think not many female idols are able to hide themselves into it,there is a hint in the photo,please make a smart guess!

Answer will be revealed soon!!

 The person in the luggage is...