http://www.youtube.com/watch?v=-wY8A9YQkEY  ^^ enjoy

Sunny is a special girl for every people who knows her. She's kind-hearted, helpful, obedient and has a very sweet smile which makes everyone happy whenever they see it. She is the best neighbor, friend, sister and daughter for everyone. But she is running out of time. Her memory will sooner or later might fade.

"Sometimes it's hard to remember than to forget."

Sungmin is somehow the opposite of Sunny. He is a nobody for everyone. He doesn't care for anyone. His perspective about the world is a cold, dark place where everyone must live for their self.

"Memories are nice but that's all they are"