This story is about Lee Jong Suk, a nerd and invinsible high school student. He always last in academic and really at sport. He had nothing to offer and his life is pathetic that sometimes he even think of suicide.When he thought that his life is useless and unimportant to anyone, someone show up and change his life in a blink of an eye. But that someone is not from the same world as him.

Knowing the truth about that someone identity, Jongsuk become friends with that ghost and his life starting to change for the better... the invinsible lee jongsuk are now the most visible in his school. The relationship between him and his ghost friend are also developing to be more than just a friend...