You must be ever heard about ghost. Some people said they are a lost soul who,after their body died,had not yet gone to the light or The Other Side because they still have an unfulfill deed,they didn't finish yet when they were still alive. Some people said is just a hoax ,they didn't exist..it's just exist in our mind or imagination. Some people who has the believe in science claimed that's just our energy imprinted , in a high energized state or very low frequency. And that kind of energy make an imprint or apparition from our own mind.

As for Im yoona,she believe that ghost exist. It's not a blunt opinion or freak fanaticism,it's merely a confession. Yes,she can see the ghost or spirit or bull or whatever people opinion about them. They are everywhere in your house,in your own bedroom ,in your school,in the street that everyday you pass. They are in here.