Girl in a Closet

He is an idol in South Korea, a lead guitarist in a band, but not as famous as the other members. He was not the one to be noticed always. He always receives less attention. But he doesn't even care, he was always contented and happy playing his guitar it doesn't matter if someone listens to him. He believes that he don't want anything, he's already satisfied in his life. But a sudden encounter with a not so ordinary girl turns his life into a big mess and brought him so much happiness he could ever imagine. But what else he could do with a pretty ghost he totally fall in love with?